Rectangular coaxial line to microstrip line matching transition

Details Rectangular coaxial line to microstrip line matching transition Rectangular coaxial line to microstrip line matching transition

1997-12-08

1999-11-09

Gensler, Paul

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

333 33, H01Q 2100, H01P 508

Patent

active

059823380

ABSTRACT:
A microwave circuit including a rectangular coaxial transmission line, a microstrip transmission line and a wideband transition section for transitioning between the rectangular coaxial and microstrip lines. The transition section includes a capacitive section which cancels inductive reactance caused by physical discontinuities at the transition junction. The transition section includes a conductive tab extending from the rectangular coaxial center conductor which is electrically connected to the microstrip conductor line. The capacitive section can take the form of a dielectric disk of greater dielectric constant than that of the rectangular coaxial dielectric section, or an area of increased cross-sectional dimension of the rectangular coaxial center conductor.

REFERENCES:
patent: 3201721 (1965-08-01), Voelcker
patent: 3686624 (1972-08-01), Napoli et al.
patent: 5418505 (1995-05-01), Agarwal et al.
patent: 5703599 (1997-12-01), Quan et al.
Microwaves, Apr., 1968, pp. 52-56, "Why Not Use Rectangular Coax?", W.S. Metcalf.

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