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 ?
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.
Tornatta said, "Implementing digital variable capacitors in aperture antenna tuning is quickly becoming an essential tool in the wireless designer's toolbox.
Two main categories of technologies are identified: - Sidelobe cancellation applied to aperture antennas - Adaptive beamforming based on 2D phased array The first technology allows cancelling adaptively an interference signal received from a sidelobe of the aperture antenna thanks to an additional omnidirectional antenna allowing nulling in the digital domain or at IF a specific part of the beam pattern.
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.
The satellite industry is providing Haitian relief workers with satellite phones, portable receivers and very small aperture antenna systems.
The patented design combines the transmission power advantages of a large antenna with the low weight and portability of a small aperture antenna.
The NiceFix(TM) direction finding system, used mainly as a navigational aid for airports, covers both VHF and UHF frequency ranges (100 - 400 MHz) via one wide aperture antenna.
Tenders are invited for: Prototype of off-line correlator for arraying of large aperture antennas.
His topics are antenna system-level performanceparameters, vector analysis, radiated fields, dipole antennas, loopantennas, aperture antennas, and array antennas.
The expansion creates increased manufacturing space for Ball's tactical video technologies, phased array and conformal aperture antennas, including large programs such as the Zumwalt Class Destroyer, Advanced Medium-Range Air-to-Air Missile, and Geodesic Dome Phased Array Antenna.
WIN-T Increment 2 will provide 18 inch aperture antennas for the TCN and PoP CIs and 16.