W-Band Polarimetric Monopulse Tracking Receiver

Abstract

A planar 94 GHz monopulse receiver has been integrated on a single chip. The receiver is based on four planar antennas followed by four planar subharmonic mixers. The output of the mixers is taken to an IF monopulse processor at 2-4 GHz so as to achieve very deep nulls. The performance of the monopulse receiver has been measured at 94 GHz and resulted in a system NF of around 15 dB, and better than -40 dB nulls in the elevation and difference patterns. Furthermore, the null is maintained at lower than -20 dB over 2 GHz bandwidth. This represents the highest performance monopulse receiver to-date in a planar implementation and is competitive with waveguide systems at W-band frequencies. Also, we have developed novel distributed wideband MEMS phase shifters suitable for 2-100 GHz applications. The distributed MEMS phase shifters resulted in excellent performance at 40-100 GHz. with an insertion loss of better than 4 dB for a 360 deg. phase shift. To our knowledge. this represents the best phase shifter performance at these frequencies using any technology (diode, HEMT, MEMS).

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 2000
Accession Number
ADA379069

Entities

People

  • Gabriel M. Rebeiz

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Advanced Electronics
  • Human Systems
  • Sensors

DTIC Thesaurus Topics

  • Antennas
  • Bandwidth
  • Electrical Engineering
  • Engineering
  • Frequency
  • Frequency Bands
  • Insertion Loss
  • Losses
  • Microelectromechanical Systems
  • Military Research
  • Millimeter Waves
  • Phase Shift
  • Radar
  • Radar Receivers
  • Students
  • Transmission Lines
  • W Band

Readers

  • Electronics Engineering
  • Integrated Circuit Design and Technology.
  • Phased Array Antenna Design.