Accession Number:

AD0633297

Title:

CONTROL OF UNDESIRABLE HIGHER-ORDER MODES EXCITED AT A CONICAL-HORN MOUTH,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF RADIO AND ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1966-01-24

Pagination or Media Count:

1.0

Abstract:

A TE11 mode emerging from the mouth of a conical horn excites higher-order modes, which can adversely affect the radiation pattern. This effect is substantially reduced over a 10 bandwidth by adding a series of resonant foam discs, which provide matching for the mouth and a filter passing only the desired mode over a suitable bandwidth. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE