Development of an Integrated Staring Monopulse Receiver.
Abstract
We have developed a novel high efficiency 94 GHz staring monopulse receiver. The receiver is based on four coplanar-waveguide fed(cpw) slot ring antennas followed by four cpw based subharmonic mixers which are pumped by a coaxial/cpw 45-46 GHz local oscillator distribution network. The 2-4 GHz IF outputs are amplified and sent to a passive IF monopulse network which synthesizes the sum and difference patterns. The staring monopulse configuration is compatible with MMIC processing and can be fabricated at very low cost for large volume applications. Furthermore, this topology is easily extendable to fully polarimetric monopulse systems at 94 GHz. We have succeeded in building the 2x2 antenna array and in demonstrating 25 dB polarization isolation between the polarized ports. We have also fabricated a 7 dB subharmonic mixer which is, to our knowledge, the best 94 GHz MMIC mixer available to date. The monopulse IF network resulted in better than 30 dB null over a 1 GHz bandwidth. We believe that this design will lead to a low cost implementation of polarimetric W-band monopulse systems and are pursuing the effort under a continuing ARO contract.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 16, 1996
- Accession Number
- ADA324686
Entities
People
- Gabriel M. Rebeiz
- Linda P. Katehi
- N. S. Baker
- Sanjay Raman
Organizations
- University of Michigan