Title :
A W-band micro coaxial passive monopulse comparator network with integrated cavity-backed patch antenna array
Author :
Oliver, J. Marcus ; Ralston, Parrish ; Cullens, Evan ; Ranzanic, Leonardo ; Vanhille, Ken ; Raman, Sanjay
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng, Virginia Tech, Blacksburg, VA, USA
Abstract :
An integrated W-band passive monopulse comparator network is constructed using four rat-race hybrids, designed using the Polystrata™ 3-D sequential micromachining process. The comparator network has a simulated azimuth null of 44.6 dB and elevation null of 44.4 dB. The network is monolithically integrated with an array of cavity backed patch antennas and diode detectors for measurement purposes. An azimuth null of 31.4 dB and an elevation null of 22.5 dB are measured at 93.5 GHz.
Keywords :
MMIC; coaxial waveguides; comparators (circuits); micromachining; microstrip antenna arrays; microwave antenna arrays; passive networks; radar tracking; 3D sequential micromachining process; W-band; azimuth null; cavity backed patch antennas arrays; diode detectors; elevation null; gain 44.4 dB; gain 44.6 dB; microwave coaxial circuits; passive monopulse comparator network; Antenna measurements; CMOS integrated circuits; Frequency conversion; Frequency measurement; Mechanical variables measurement; Phase measurement; Radar; Microwave circuits; antenna arrays; micro coax; monopulse comparator; radar tracking;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972747
