Accession Number:

ADA149157

Title:

Phaseshifter Study

Descriptive Note:

Final rept. 13 Jun 1977-13 Sep 1978

Corporate Author:

NORTHROP RESEARCH AND TECHNOLOGY CENTER PALOS VERDES PENINSULA CA

Personal Author(s):

Report Date:

1979-05-01

Pagination or Media Count:

256.0

Abstract:

An experimental phase-locked phase shifter was designed and tested. This phase shifter is intended for use as the local oscillator for a mixer, shifting the phase of a signal as it passes through. The output frequency was 915 MHz, though results are independent of frequency down to 12.8 MHz and up to at least 2 GHz. This makes phase shifter performance independent of signal bandwidth. This phase shifter is linear and stable over a or - 600 degree range. Maximum error from best straight line was 2.3 and - 9.4 degrees, limited phase detector linearity. Settling time to within 10 was 1.6 microseconds. Circuit description, schematic and performance curves are contained in the report. A dual element conical monopole antenna was interfaced with the phase shifter and a phase reference oscillator. Antenna patterns for this combination were recorded for frequencies from 7 to 15 GHz. These patterns are contained in Appendixes A through H. Omnidirectional beam steering was demonstrated and octave bandwidth was easily obtained.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE