aperture antenna

aperture antenna

[′ap·ə‚chər an′ten·ə]
(electromagnetism)
Antenna in which the beam width is determined by the dimensions of a horn, lens, or reflector.
References in periodicals archive ?
While conducting research at NASA Langley, he developed various computational codes for electromagnetics and received a Certificate of Recognition from NASA for development of a hybrid Finite Element Method/Method of Moments/Geometrical Theory of Diffraction code for cavity backed aperture antenna analysis.
Design of band notched ultrawideband square aperture antenna with a hat-shaped back-patch," IEEE Trans.
Hung, "Compact ultrawideband rectangular aperture antenna and band-notched designs," IEEE Trans.
An investigation of the impact of finite ground planes on aperture antenna performance will aid in understanding when the antenna is placed in more complex structures.
Meanwhile, this concept is employed to design reconfigurable aperture antenna and unit cell of fractal structure as a frequency selective surface [7, 8].
Wu, "Microstripline-fed circularly -polarized aperture antenna," IEEE AP-S Int.
The coplanar waveguide (CPW) fed aperture antenna consists of an aperture that is etched from a ground plane having a bow-tie shape and a CPW feed line that protrudes through the aperture.
In 1983, Randtron Antenna Systems (now a division of L3 Communications in Menlo Park, CA) developed a common aperture antenna with performance equal to or better than a spiral antenna of the same size and capable of simultaneously receiving both senses of circular polarization.
Tornatta said, "Implementing digital variable capacitors in aperture antenna tuning is quickly becoming an essential tool in the wireless designer's toolbox.
Its basic idea is to use a thin array composed of small aperture antennas to achieve a large aperture antenna by performing correlation operations in pairs.
A total of eight layers--three metal, three metallized dielectric substrates and two foam layers--constitute the overall geometry of the stripline-fed, printed aperture antenna.
In combining our technical expertise, we are in an excellent position to provide a specific solution to the Satellite Communications community with the introduction of this tactical lightweight transit cased medium aperture antenna.