Wideband coax-to-TM.sub.01 converter and testing system using th

Details Wideband coax-to-TM.sub.01 converter and testing system using th Wideband coax-to-TM.sub.01 converter and testing system using th

1992-12-02

1994-11-29

Gensler, Paul

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

324642, 333 26, 333 34, G01R 2704, H01P 5103

Patent

active

053693671

ABSTRACT:
A wideband convertor for mode conversion between a TEM coaxial mode in coaxial line and the TM.sub.01 circular waveguide mode in circular waveguide. The convertor takes advantage of the somewhat similar electric field configurations of the two modes. To physically match the coaxial line to the waveguide, a tapered section is employed to provide a gradual diameter transition.

REFERENCES:
patent: 2652475 (1953-09-01), Spencer
patent: 3176250 (1965-03-01), Marchand et al.
patent: 4280112 (1981-07-01), Eisenhart
patent: 4853656 (1989-08-01), Guillou et al.
De Vore, Coaxial Line Impedance Transformer, Ser. No. 475,947, filed Feb. 15, 1943, published Oct. 18, 1949, vol. 627, p. 873, O.G.
"Input Impedance of a Coaxial Line Probe Feeding a Circular Waveguide in the TM.sub.01 Mode," R. H. MacPhie et al., IEEE Transactions on Microwave theory and Techniques, vol. 38, No. 3, Mar. 1990, pp. 334-337.

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