A lens antenna is a directional antenna that uses a shaped piece of microwave-transparent material to bend and focus microwaves by refraction, as an optical...

lens antenna avoids this problem. A variation on the Luneburg lens antenna is the hemispherical Luneburg lens antenna or Luneburg reflector antenna....

as antennas at UHF and microwave frequencies, above 300 MHz. A lens antenna uses a lens to direct or collect microwave radiation. An array antenna is...

microwaves. Linear slot antennas emit narrow fan-shaped beams. Used as UHF broadcast antennas and marine radar antennas. Lens A lens antenna is made from a layer...

employed in antenna technology, such as with the lens antenna. The antenna's power gain (or simply "gain") also takes into account the antenna's efficiency...

of reflector and lens antennas. Unlike traditional reflector and lens antennas, however, the focusing effect in a Fresnel zone antenna is achieved by controlling...

("dish") antennas are the most widely used directive antennas at microwave frequencies, but horn antennas, slot antennas and lens antennas are also used...

layers of lens material. The electronics lie outside of both the pupil and the iris so there is no damage to the eye. There is a wireless antenna inside...

often use dielectric lenses, commonly called a lens antenna to refract electromagnetic radiation into a collector antenna. Lenses can become scratched...

Monopulse radar systems can be constructed with reflector antennas, lens antennas or array antennas. Historically, monopulse systems have been classified...

A transmitarray antenna (or just transmitarray or called as layered lens antenna) is a phase-shifting surface (PSS), a structure capable of focusing electromagnetic...

plane arrays to be used with the extended hemispherical lens. Luneburg lens Fresnel lens Lens antenna Frid, Henrik (2016). "Closed-Form Relation Between the...

R. (November 1963). "Wide-angle microwave lens for line source applications". IEEE Transactions on Antennas and Propagation. 11 (6): 623–632. Bibcode:1963ITAP...

techniques are used (see Antenna measurement). Lens antenna Radio astronomy J. J. Condon; S. M. Ransom. "Reflector Antennas". Essential Radio Astronomy...

computer-generated display superimposed on the world outside. An antenna on the lens could pick up a radio frequency. In 2016, work on Interscatter from...

to the development of metamaterial antennas and metamaterial microwave lenses for miniature wireless system antennas which are more efficient than their...

(2021). "A Sensing Demonstration of a Sub THz Radio Link Incorporating a Lens Antenna". Progress in Electromagnetics Research Letters. 99: 119–126. doi:10...

the impedance of free space (see horn antenna for more details). When used with a offset, parabolic or lens antenna, the phase center of the horn is placed...

by a flat lens versus being dispersed. The earliest research in metamaterial antennas was an analytical study of a miniature dipole antenna surrounded...

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...

Audio's Digital Directivity Control Technology Design of Cost-Effective Beam Steered Phased Array Antenna with Enhanced Gain using Metamaterial Lens v t e...

In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio...

plasma antenna is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. A plasma...

Being short, light waves can be focused or collimated with a small lens/antenna, and to a much higher degree than radio waves. Thus, a receiving device...

control, radomes, high-frequency battlefield communication and lenses for high-gain antennas, improving ultrasonic sensors, and even shielding structures...

near-infrared, flat lens was announced in 2012 using nanostructured antennas. It was followed in 2013 by an ultraviolet flat lens that used a bi-metallic...

Hao developed integrated antenna solutions using novel materials for security, aerospace, and healthcare, such as lens antennas for satellite communications...

transmitter, which is connected to an antenna, which radiates the waves. They are received by another antenna connected to a radio receiver, which processes...

geometrical center of an optical system such as a camera lens, microscope or telescopic sight. Lens elements often have rotational symmetry about the axis...

operating in 1999 as a 6 × 8 (= 48) antenna array at 0.96 MW, expanding in 2007 to a 12 × 15 (=180) array of 180 antennas with 360 radio transmitters at 9...