Waveguide slot array termination and antenna system

Details Waveguide slot array termination and antenna system Waveguide slot array termination and antenna system

1987-04-14

1989-04-11

Sikes, William L.

Communications: radio wave antennas

Antennas

Slot type

H01Q 1310

Patent

active

048210447

ABSTRACT:
A termination (20, 32) is placed in the opposing wall behind the center radiator (18c, 28c) of a multiple slot antenna array. The termination is inoperative when the array is excited for sum mode radiation patterns and is operative when the array is excited with difference mode radiation patterns. When the terminatrion is inoperative, the center slot radiator is excited along with the remaining slot radiators (18, 28) to produce the sum pattern. When the termination is operative, the center slot radiator is prevented from receiving excitation and a resultant difference pattern is produced by the remaining slot radiators (18, 28). Both E-plane and H-plane patterns can be achieved by the appropriate use of series slots and shunt slots. By eliminating the center slot (18c, 28c) in the difference pattern a reduction in side lobes results. This is an improvment over current practice where there are an even number of slots and no change of amplitude distribution--only a change of 180.degree. phase between the halves for the difference mode.

REFERENCES:
patent: 3004259 (1961-10-01), Shanks et al.
patent: 4429313 (1984-01-01), Muhs, Jr. et al.

Affiliated with

Also associated with

Rating

Waveguide slot array termination and antenna system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waveguide slot array termination and antenna system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waveguide slot array termination and antenna system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-669639