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
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.
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