Back-to-Back Diplexers for Nonlinear Junction Detection

Abstract

To determine if a radar target possesses a nonlinear (harmonic) response, it is necessary to perform a wideband sweep of transmit frequencies while capturing a harmonic of those frequencies. The transmission must be high power and must contain minimal system-generated harmonics; the reception is at low power and must contain minimal residual transmit-probe energy. A novel arrangement of diplexers accomplishes these objectives. Two 4U metallic enclosures, containing enough diplexer pairs to sweep the transmit frequencies across the ultra-high-frequency and long-wave (L) bands, have been fabricated. This report contains figures that demonstrate how to configure the diplexers for transmit and/or receive, and data that quantify the performance of these diplexers for five separate but adjacent frequency bands.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2020
Accession Number
AD1111267

Entities

People

  • Arthur Harrison
  • Getachew Kirose
  • Gregory J. Mazzaro
  • Kelly Sherbondy
  • Kyle Gallagher

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Amplifiers
  • Analyzers
  • Detection
  • Detectors
  • Diplexers
  • Electrical Engineering
  • Electrons
  • Filters
  • Frequency
  • Frequency Bands
  • Generators
  • Harmonics
  • Losses
  • Low Noise
  • Low Noise Amplifiers
  • Military Research
  • Power Amplifiers
  • Radar
  • Radar Targets
  • Radar Transmitters
  • Radio Frequency
  • Signal Generators
  • Targets
  • Transmitters
  • Universities

Readers

  • Electronics Engineering
  • Phased Array Antenna Design.
  • Radio communications and signal processing.