Search references for REFLECTIVE ARRAY-ANTENNA. Phrases containing REFLECTIVE ARRAY-ANTENNA
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Class of directive antennas
In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of
Reflective_array_antenna
Set of multiple antennas which work together
An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves
Antenna_array
Rectangular two-element array antenna
The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from
Moxon_antenna
Antenna used with a television to receive television programs
Yagi, log periodic, and (for UHF) the multi-bay reflective array antenna. The purpose of the antenna is to intercept radio waves from the desired television
Television_antenna
Antenna consisting of two rod-shaped conductors
the reflective array antenna, increasing the gain in the desired direction by another 3 dB An alternative realization of a uni-directional antenna is the
Dipole_antenna
Class of large multielement directional wire radio transmitting antennas
radio bands. They constitute a type of reflective array antenna, consisting of multiple wire dipole antennas, suspended in a vertical plane, often positioned
Curtain_array
Type of antenna
America (Circa 1989). Sector antenna Reflective array antenna Wickline, W.A. (1982). "Special properties of "Panel" antennas". pp. 299–302. doi:10.1109/VTC
Panel_antenna
Electromagnetic spectrum 300–3000 MHz
receiving antennas. For television broadcasting specialized vertical radiators that are mostly modifications of the slot antenna or reflective array antenna are
Ultra_high_frequency
Antenna constructions for different applications
with eight broadside arrayed bowtie dipoles backed by a reflective mesh curtain Curtain array shortwave transmitting antenna, Austria. The front row
Antenna_types
Type of directional antenna
television antennas. The antenna can be regarded as a form of directive antenna with a gain intermediate between a plane reflective array antenna and a parabolic
Corner_reflector_antenna
Dipole antenna optimized for operation in the High Frequency bands
this antenna in 1946. It is very popular in the United States. The antenna can be erected as horizontal dipole, as sloper, or an inverted-V antenna. With
G5RV_antenna
Type of radio-wave propagation
distinction arises solely from different desirable radiation patterns of the antennas (near vertical for NVIS, near horizontal for conventional long-range skywave
Near vertical incidence skywave
Near_vertical_incidence_skywave
1946 US Army Signal Corps experiment to reflect radar signals off of the Moon
5 MHz in 1⁄4-second pulses, applied to the antenna, a "bedspring" reflective array antenna composed of an 8x8 array of half wave dipoles and reflectors that
Project_Diana
Non-commercial use of the radio spectrum
also affect transmissions: The United Kingdom measures at the point the antenna is connected to the signal feed cable, which means the radio system may
Amateur_radio
The Sloper Antenna is a slanted Dipole antenna. While horizontal dipoles required two large support masts, this antenna type only needs one large mast
Sloper_antenna
Device that transmits and receives radio waves
monopole antennas Array antennas Loop antennas Parabolic antenna Traveling wave antennas Log-periodic antenna Spiral antenna Horn antenna Adcock antenna Sector
Antenna_(radio)
Object detection system using radio waves
parabolic antenna. Another method of steering is used in a phased array radar. Phased array antennas are composed of evenly spaced similar antenna elements
Radar
Type of radio antenna
shape and steer the antenna beams without the need of phased arrays. Satellite signals can be steered or focused in the reflective or refractive modes
Plasma_antenna
Topics referred to by the same term
type of architecture in load balancing (computing) Bowtie array, a reflective array antenna Bowtie cotter pin, a formed wire fastener that resembles an
Bow_tie_(disambiguation)
Shortwave antenna
Isotron is the trade name for a shortwave antenna marketed by Bilal Co. for use as an amateur radio transmitting antenna for restricted spaces. It is physically
Isotron
Fleet of truck-mounted weather radars
mobile weather radar platform to feature a phased array radar, which utilizes many smaller antennas to near simultaneously transmit and receive high resolution
Doppler_on_Wheels
form an image of the antenna, the ground plane need not be grounded to the Earth. Many antenna types, such as reflective array antennas, use flat surfaces
Image_antenna
Class of antennas
Metamaterial antennas are a class of antennas which use metamaterials to increase performance of miniaturized (electrically small) antenna systems. Their
Metamaterial_antenna
Antenna based on the concept of Fresnel zone
Fresnel zone antennas, namely, Fresnel zone plate, offset Fresnel zone plate antennas, phase correcting reflective array or "Reflectarray" antennas and 3 Dimensional
Fresnel_zone_antenna
Instrument observing deep into Jupiter's atmosphere
certain distance below the visible cloud tops. See also Reflective array antenna and Slot antenna During a close pass in summer of 2017 when MWR was operated
Microwave_Radiometer_(Juno)
Object that reflects an image
mirrors, metals like silver or aluminium are often used due to their high reflectivity, applied as a thin coating on glass because of its naturally smooth and
Mirror
Dispersive optical device
resolving power. In a virtually imaged phased array, the phased array is the optical analogue of a phased array antenna at radio frequencies. Unlike a diffraction
Virtually_imaged_phased_array
Form of radar used to create images of landscapes
one antenna, the only solution is to use additional channels fed by additional antennas. The system then becomes a hybrid of a SAR and a phased array, sometimes
Synthetic-aperture_radar
Strength of an object's radar echo
Metasurfaces Based on Scattering Cancellation Using Array Theory," in IEEE Transactions on Antennas and Propagation, vol. 67, no. 1, pp. 298-308, Jan.
Radar_cross_section
Reflection coefficient – Reflections of signals on conducting lines – Reflective array antenna – Refractive index contrast – Regenerative circuit – Register transfer
Index_of_electronics_articles
2003 US experimental Doppler radar system
in azimuth and elevation. By contrast, phased arrays are an antenna array, composed of many small antennas on a flat panel, which steer the radar beam electronically
Multifunction Phased Array Radar
Multifunction_Phased_Array_Radar
Information method in electromagnetic radiation
velocity-sensitive imaging with the invention in the 1990s of synthetic array heterodyne detection. The light reflected from a target scene is focused
Optical_heterodyne_detection
Long distance radar technology
Making a beam at this angle generally requires enormous antenna arrays and highly reflective ground along the path the signal is being sent, often enhanced
Over-the-horizon_radar
Type of artificial sheet material
metallic antennas, dielectric scatterers, or patterned films, that interact with incident waves. Depending on design, they can operate in reflective, transmissive
Electromagnetic_metasurface
Radar used to locate and monitor meteorological conditions
the antenna scans the atmosphere, on every angle of azimuth it obtains a certain strength of return from each type of target encountered. Reflectivity is
Weather_radar
Power system designed to supply usable electric power from solar energy
its top, such as a light fixture or an antenna. Pole mounting raises what would otherwise be a ground mounted array above weed shadows and livestock, and
Photovoltaic_system
Retroreflector with three orthogonal, intersecting flat surfaces
lights are molded with arrays of small corner reflectors, with different sections oriented for viewing from different angles. Reflective paint for visibility
Corner_reflector
Application of radar which is used to create two-dimensional images
4D imaging radar leverages a Multiple Input Multiple Output (MiMo) antenna array for high-resolution detection, mapping and tracking of multiple static
Imaging_radar
Type of radar system
passive electronically steered phased-array antenna. This is because the phase-shifter elements in the antenna are non-reciprocal and the phase shift
Pulse-Doppler_radar
Reflector that has the shape of a paraboloid
parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio
Parabolic_reflector
Network of weather radars operated by the NWS
2800 MHz, with a typical gain around 53 dB using a center-fed parabolic antenna. The pulse repetition frequency (PRF) varies from 318 to 1300 Hz with a
NEXRAD
US experimental communications satellite
using an innovative reflective array antenna, an X-band transmitter for downlink and a C-band transmitter for uplink. The antenna array is "planar", meaning
Earth_Escape_Explorer
Radio communications technique
of 144 MHz EME antenna array at WA6PY in California, U.S. A dish antenna for microwave EME work at WA6PY, California, U.S. A dish antenna for UHF EME at
Earth–Moon–Earth communication
Earth–Moon–Earth_communication
Propagation of radio waves beyond the radio horizon
degrees are optimum. Suitable antennas for long distance would be a high Yagi or a rhombic; for NVIS, a dipole or array of dipoles about .2 wavelengths
Skywave
2021 NASA planetary defense mission
new type of high-gain communication antenna, a Spiral Radial Line Slot Array (RLSA). The circularly-polarized antenna operated at the (microwave) X-band
Double Asteroid Redirection Test
Double_Asteroid_Redirection_Test
Mixed-use commercial complex in Holmdel, New Jersey
shortwave radio links using a 95-foot (29 m) rotatable antenna, otherwise known as a "Bruce Array" developed by Edmond Bruce, to allow it to scan the horizon
Bell_Labs_Holmdel_Complex
Schultes dipole antenna array, while von Willisen used a 48 cm transmitter, first connected to a Yagi antenna and then a parabolic antenna at 13.5 cm and
History_of_radar
Joint NASA-ISRO synthetic radar aperture spacecraft
past 100 years. NISAR diagram NISAR undergoing tests NISAR solar array NISAR's DGA antenna NISAR being Integrated with the Payload Fairing of GSLV F16 NISAR
NISAR_(satellite)
SpaceX satellite Internet constellation
(October 14, 2020). "@antonkanerva Yes. Everything is slow to a phased array antenna" (Tweet). Archived from the original on December 2, 2021. Retrieved
Starlink
Logarithmic unit expressing the ratio of physical quantities
gain of an antenna compared with the gain of a half-wave dipole antenna. 0 dBd = 2.15 dBi dBiC dB(isotropic circular) – the gain of an antenna compared
Decibel
Digital phased array radar used for weather observation
but this typically requires long antennas to compensate, which can be seen with NEXRAD and WSR-74-S. For phased array radars, which use radiative elements
Horus_(radar)
Property of waves that can oscillate with more than one orientation
axis of linear polarization by the liquid crystal array. Light from the backlight (or the back reflective layer, in devices not including or requiring a
Polarization_(waves)
American astronomer
'quieten' and de-ionize, allowing the longer radio waves into his antenna array. Reber described this as being a "fortuitous situation". Tasmania also
Grote_Reber
Mechanism where confined high-speed particles confer energy to a vehicle
"lightcraft" design is a reflective funnel-shaped craft that channels heat from the laser toward the center, using a reflective parabolic surface, causing
Beam-powered_propulsion
Aspect of a lens or reflector
electrostatic or electromagnetic. This includes parabolic antennas and lens-type reflective antennas of all kinds. The effect is analogous to the circle of
Focal_cloud
Description of radar types, purposes and specifications
like a search light when emitted from the reflector of the radar set's antenna. Early Warning (EW) Radar Radar Systems Ground Control Intercept (GCI)
List_of_radar_types
Observatory
telescopes. On the other hand, the Multipurpose Interpherometric Array (MIA) and the Lunar Antenna for Radio Astronomy (LARA) stand out as projects that expand
Argentine Institute of Radio Astronomy
Argentine_Institute_of_Radio_Astronomy
Space propulsion method using Sun radiation
material is not as mature as in the case of reflective sails. The coupling of direction and thrust seen in a reflective solar sail has also been proposed to
Solar_sail
Satellite-provided Internet
typically a small (2–3-foot, 60 to 90 cm diameter), reflective dish-type radio antenna. The VSAT antenna must also have an unobstructed view of the sky to
Satellite_Internet_access
simulations, and antenna technology. Radar programs focus on the development, analysis, and performance evaluation of radar systems; reflectivity and propagation
GTRI Sensors and Electromagnetic Applications Laboratory
GTRI_Sensors_and_Electromagnetic_Applications_Laboratory
Component of the Apollo spacecraft
omnidirectional S-band antennas on the CM were used when the attitude of the CSM kept the high-gain antenna from being pointed at Earth. These antennas were also used
Apollo command and service module
Apollo_command_and_service_module
NASA probe of the Sun's outer corona
(160 lb) and keeps the spacecraft's instruments at 29 °C (85 °F). A white reflective alumina surface layer minimizes absorption. The spacecraft systems and
Parker_Solar_Probe
Indian earth observation satellite
acquisition, processing of data relayed by the Cartosat-1. A spherical Phased Array Antenna with steerable beam is used to transmit the data to the required ground
Cartosat-1
Oldest continuously operating radio transmitting installation in the world
historical structure. This consisted of a 70 metre tower supporting two reflective dipole arrays weighing 40 and 70 tons covering 5.8 to 18.8 MHz that could be
Nauen_Transmitter_Station
Method of spatial measurement using laser
phased array can illuminate any direction by using a microscopic array of individual antennas. Controlling the timing (phase) of each antenna steers a
Lidar
crosstalk from neighboring dishes in the array. The antennas have been optimized to have low loss and high reflectivity across the 400–800 MHz observing band
Hydrogen Intensity and Real-time Analysis eXperiment
Hydrogen_Intensity_and_Real-time_Analysis_eXperiment
Equipment to measure wind conditions
Mono-static antenna systems can be divided further into two categories: those using multiple axis, individual antennas and those using a single phased array antenna
Wind_profiler
Multisite radar
communications. The MIMO radar may appear similar to (c), but it is more of a phased array technique counting as a single "site" (microdiversity). It is also closely
Multistatic_radar
American earth observation satellite (1982–2001)
occurred July 27, 1982. The high gain Ku antenna was commanded to deploy but failed. Attempts to free the antenna were successful on August 15. In February
Landsat_4
NASA spacecraft (2006–present)
is −220 dBm. The received signal level (RSL) using one, un-arrayed Deep Space Network antenna with 72 dBi of forward gain equals −148 dBm. Because of the
New_Horizons
Plane curve: conic section
This reflective property is the basis of many practical uses of parabolas. The parabola has many important applications, from a parabolic antenna or parabolic
Parabola
Phenomenon resulting from the superposition of two waves
consist either of arrays of parabolic dishes or two-dimensional arrays of omni-directional antennas. All of the telescopes in the array are widely separated
Wave_interference
Substances which absorb radio frequency energy
radiation. Many measurements in electromagnetic compatibility (EMC) and antenna radiation patterns require that spurious signals arising from the test
Radiation-absorbent_material
Telecommunications, sound and video
broadcasting with digital signals. Many television viewers no longer use an antenna to receive over-the-air broadcasts instead, relying on cable television
Technology_of_television
Remote observation of lightning strikes
detectors: ground-based systems using multiple antennas, mobile systems using a direction and a sense antenna in the same location (often aboard an aircraft)
Lightning_detector
these problems, one single scanning antenna is used instead of several antennas. In this configuration, the antenna scans over the entire sampling area
Microwave_imaging
Indian defense projects under DRDO
repetition frequency. The entire PESA antenna array can swivel 360 degrees on a rotating platform. This allows the radar antenna to be rapidly repositioned and
Projects_of_DRDO
Indian orbiter mission to Mars (2013–2022)
transponders. The antenna array consists of a low-gain antenna, a medium-gain antenna and a high-gain antenna. The high-gain antenna system is based on
Mars_Orbiter_Mission
optical wavelength size, which acts as an "antenna" for light, converting light into electricity. Arrays of nantennas could be an efficient means of
Nanophotonic_resonator
Radar defence system in Britain in World War II
this by connecting a cathode-ray tube (CRT) to a directional Adcock antenna array, originally built by the RRS but now unused. The combined system, later
Chain_Home
Slovak-Canadian engineer and physicist
Cheben, Pavel; Ortega-Moñux, Alejandro (2022). "On-Chip Metamaterial Antenna Array with Distributed Bragg Deflector for Generation of Collimated Steerable
Pavel_Cheben
Type of wireless power transfer
charging infrastructure was found in 2017 to increase the occurrence of reflective cracks in road surfaces. Testing of various bonding materials between
Inductive_charging
NASA mission to Mercury
kinds of antennas: a high gain phased array whose main beam could be electronically steered in one plane, a medium-gain "fan-beam" antenna and a low
MESSENGER
First interplanetary solar sail spacecraft
a degree, not by using thrusters, but by dynamically controlling the reflectivity of the 80 liquid crystal panels at the outer edge of the sail so that
IKAROS
Lett. IEEE Antenn Wireless Propag Lett, IEEE Antenna array (electromagnetic) Antenna noise temperature Antennas and Wireless Propagation Letters (IEEE) Anthelion
Index_of_physics_articles_(A)
Fingerprint-resistant oleophobic coating Yes Laminated display No Anti-reflective coating No Reflectance —N/a Full sRGB display Yes Wide color display (Display
List_of_iPad_models
Device used to produce electricity from light
surface changes from reflective to adaptive, allowing the light to penetrate the cell. The other parts of the cell remain reflective increasing the retention
Solar_cell
Device that converts sound into an electrical signal
source travels through an optical fiber to illuminate the surface of a reflective diaphragm. Sound vibrations of the diaphragm modulate the intensity of
Microphone
Automatic ship station- and heading-holding systems
nearby structure or ship. Risks include the system locking onto other reflective objects, which can block the signal. However, the Cyscan Absolute Signature
Dynamic_positioning
other astronomical telescope arrays including: the Navy Prototype Optical Interferometer, the CHARA array, and the IOTA array. In 2008, Max Tegmark and Matias
History_of_the_telescope
October 2021. Retrieved 27 May 2021. "SpaceX launches CRS-22, new solar arrays to International Space Station". NASASpaceFlight.com. 3 June 2021. Archived
List of Falcon 9 and Falcon Heavy launches (2020–2022)
List_of_Falcon_9_and_Falcon_Heavy_launches_(2020–2022)
Modular space station in low Earth orbit
minutes around Earth, 15.5 times a day. Measuring 109 m (358 ft) (with solar arrays) by 73 m (239 ft), it is as large as a full-sized football or soccer field
International_Space_Station
American artist (1935–2024)
space in a 90 ft diameter 120 degree spherical mirror made of aluminized reflective PET film, which produced real images of the visitors hanging upside down
Robert_Whitman
Emerging subtype of germicidal UV light
Although far UVC has been shown to be effective at inactivating a wide array at viruses at doses that fall beneath exposure limits, the optimal dosage
Far-UVC
American strategic bomber
offensive passive electronically scanned array radar set with electronic beam steering (and a fixed antenna pointed downward for reduced radar observability)
Rockwell_B-1_Lancer
Optical filter
Condition to Analyze FSS With D2n Symmetry in a Rectangular Array Under Normal Incidence, in IEEE Antennas and Wireless Propagation Letters. doi: 10.1109/LAWP
Frequency_selective_surface
NASA program
The First Practical Solar Power Satellite via Arbitrarily Large PHased Array Miller, David: High-temperature Superconductors as Electromagnetic Deployment
NASA Institute for Advanced Concepts
NASA_Institute_for_Advanced_Concepts
incident radiation is absorbed at the operating frequency–transmissivity, reflectivity, scattering and all other light propagation channels are disabled. Electromagnetic
Metamaterial_absorber
Subdiscipline of measurement and signature intelligence
The COBRA DANE ground station radar is an "AN/FPS-108, a phased array L-Band antenna containing 15,360 radiating elements occupying 95% of the roughly
Radar_MASINT
Chinese stealth multirole fighter aircraft
obscure the reflective surface of the engine from radar detection. The airframe and its internal weapons bay, compartment doors, and embedded antennas are lined
Shenyang_J-35
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
Boy/Male
Indian, Parsi
Strong
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya, Tamil, Telugu
Reflection; Outlook; Reflection Reflection
Boy/Male
Hindu
Reflection
Girl/Female
Tamil
Meghamala | மேகமாலா
Array of clouds
Meghamala | மேகமாலா
Surname or Lastname
English and French
English and French : habitational name from the city of Arras in Artois, northern France, or one of the other places in France so named.Scottish : habitational name from Airhouse, a locality in Channelkirk, Berwickshire.English : habitational name from a place called Arras in East Yorkshire, earlier spelled Erghes, from the plural of Old Norse erg ‘hut’, ‘shelter’.German : metonymic occupational name for a cloth merchant, from a type of woolen cloth for which the city of Arras in Flanders was famous in the Middle Ages. This name is also established in Mexico.
Boy/Male
Tamil
Gunjik | கà¯à®¨à¯à®œà¯€à®•
Reflection
Gunjik | கà¯à®¨à¯à®œà¯€à®•
Boy/Male
American, English
Lucky
Boy/Male
Hebrew
Lofty; exalted; high mountain.
Male
English
Variant spelling of English Aaron, ARRAN means "light-bringer."
Girl/Female
Tamil
Array of clouds
Boy/Male
French, Hindu, Indian
Sea
Girl/Female
Hindu, Indian
Reflection
Boy/Male
Indian
Reflection; Gnawing Reflection
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya, Sanskrit, Sindhi, Tamil, Telugu
An Array of Clouds
Boy/Male
Hindu
Reflection
Boy/Male
Tamil
Reflection
Girl/Female
Tamil
Kadambini | காதமà¯à®ªà®¿à®¨à¯€
An array of clouds
Kadambini | காதமà¯à®ªà®¿à®¨à¯€
Boy/Male
Indian
One who is honored, Exalted
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Sanskrit, Sindhi, Telugu
Array of Clouds
Girl/Female
Hindu
Array of clouds
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
Girl/Female
Indian, Tamil
Princess; Lakshmi
Girl/Female
Russian
From Lydia.
Girl/Female
Christian & English(British/American/Australian)
Christian Faith
Biblical
theft; robbery
Boy/Male
Biblical
He that strikes.
Boy/Male
Indian, Sanskrit, Telugu
Goddess Lakshmi Eyes
Boy/Male
Muslim/Islamic
Path guider
Girl/Female
American, British, English
Fragrant Flower; Modern Variant of Jasmine; Combination of Jocelyn and the Musical Term Jazz
Girl/Female
Indian
Dual, Second
Boy/Male
Gaelic
Son of an heir.
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
REFLECTIVE ARRAY-ANTENNA
a.
Capable of exercising thought or judgment; as, reflective reason.
a.
Wanting in something; incomplete; lacking a part; deficient; imperfect; faulty; -- applied either to natural or moral qualities; as, a defective limb; defective timber; a defective copy or account; a defective character; defective rules.
a.
Reflexive; reciprocal.
a.
Exerting the power of choice; selecting; as, an elective act.
n.
That which is produced by reflection.
a.
Throwing back images; as, a reflective mirror.
a.
Addicted to introspective or meditative habits; as, a reflective person.
n.
An image given back from a reflecting surface; a reflected counterpart.
n.
Order; a regular and imposing arrangement; disposition in regular lines; hence, order of battle; as, drawn up in battle array.
n.
A part reflected, or turned back, at an angle; as, the reflection of a membrane.
a.
Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers.
a.
Not reflective.
a.
Looking towardl having reference to; relative, not absolute; as, the respective connections of society.
n.
The act of reflecting, or turning or sending back, or the state of being reflected.
a.
Capable of, or pertaining to, inflection; deflecting; as, the inflective quality of the air.
v. t.
To furnish with an arras.
a.
Dependent on choice; bestowed or passing by election; as, an elective study; an elective office.
a.
Bending or turned backward; reflective; having respect to something past.
a.
Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment.
a.
Given to reflection or serious consideration; reflective; contemplative; as, a reflecting mind.