Accession Number : ADD012341

Title :   Pocket Size Antenna Match Indicator for VSWR (Voltage Standing Wave Ratio) Measurement.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Squire,Gerald K

Report Date : 01 Apr 1986

Pagination or Media Count : 8

Abstract : A pocket size antenna match indicator is described having a self contained modulated low level RF signal source which is applied to an antenna or other load under test through a dual directional coupler. Sampled RF reflected signals are detected, filtered and amplified to provide a DC voltage directly proportional to antenna mismatch. Easy to read measurement of VSWR is derived from the DC voltage by means of a dot display driver connected to a LED display. (Author)

Descriptors :   *PATENTS, *INDICATORS, *IMPEDANCE MATCHING, *STANDING WAVE RATIOS, *INSTRUMENTATION, *ANTENNAS, *TRANSMITTERS, DISPLAY SYSTEMS, RADIOFREQUENCY GENERATORS, COAXIAL CABLES, OPERATIONAL AMPLIFIERS, DIGITAL SYSTEMS, SIZES(DIMENSIONS), DIRECT CURRENT, COAXIAL CONFIGURATIONS, MATCHING, CABLES, FLOW, VOLTAGE, INVENTIONS, CONNECTORS, COUPLERS, REFLECTION, DIRECTIONAL, SIGNALS, SAMPLING, NETWORKS

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE