Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1988-11-28
1990-09-11
LaRoche, Eugene R.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333137, H01P 512
Patent
active
049566229
ABSTRACT:
An H-plane waveguide `T` junction is described in which matching is achieved over a full waveguide band at the waveguide which forms the stem of the `T`. Reflection from the wall facing the stem is reduced by using a probe as a monopole located about a quarter of a wavelength from the said wall. Variations with frequency in the reflection coefficient at the stem are reduced by a disc, at the foot of the probe, which acts as a radial reduced quarter wave transformer.
REFERENCES:
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patent: 2976500 (1961-03-01), Brockwell et al.
patent: 3311851 (1967-03-01), Abrams
patent: 3375472 (1968-03-01), Walker
patent: 4174507 (1979-11-01), Young
patent: 4217565 (1980-08-01), Salzberg
patent: 4413242 (1983-11-01), Reeves et al.
patent: 4642586 (1987-02-01), Fowler
G-MTT Microwave Symposium-Digest, Palo Alto, May 16-19, 1966, p. 208; IEEE, New York, U.S.; F. C. DeRonde: "Full-Band Matching of Waveguide Discontinuities"; p. 208, lines 3-8, 15-19, 24-29.
15th European Microwave Conference Proceedings, Paris, Sep. 9-13, 1985, pp. 329-334; Microwave Exhibitions and Publ. Ltd, Kent, GB, F. C. De Ronde: "Miniaturisation in E-Plane Technology", p. 329, line 26-p. 330, line 4; FIG. 1.
1986 IEEE-MTT-S International Microwave Symposium-Digest, Baltimore, Jun. 2-4, 1986, pp. 151-154; IEEE, New York, U.S.; F. C. De Ronde: "An Octave-Wide Matched Impedance Step and -Quarterwave Transformer" (complete article).
LaRoche Eugene R.
Lee Benny
National Research Development Corporation
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