Waveguide fed spiral antenna

Details Waveguide fed spiral antenna Waveguide fed spiral antenna

1986-01-30

1991-08-06

Wallace, Linda J.

Communications: radio wave antennas

Antennas

Spiral or helical type

H01Q 136

Patent

active

H00009563

ABSTRACT:
This invention is a mechanism for connecting a spiral antenna to a wavegu with very low transmission and reflection losses. The invention provides a smooth broadband transition from a spiral, balanced transmission line through a printed circuit fin-line transition and then to a waveguide TE.sub.10 E-plane transition and extends the use of spiral antennas to millimeter wave frequencies.

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