Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1980-07-11
1982-01-12
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333128, H01P 519
Patent
active
043108148
ABSTRACT:
A transmission line hybrid junction which provides a power dividing and combining function between a first port and a pair of ports. In one embodiment it provides a well-matched, high-isolation, three-port, equal-power, equal-phase, power dividing junction with a bandwidth adequate for typical radio frequency applications. The hybrid junction comprises a single transmission line coupled to a pair of branch transmission lines, and a single resistive element coupled between the branch lines. The single transmission line comprises a quarter wavelength transforming section and each of the branch transmission lines comprises two cascaded quarter wavelength transforming sections. Coupling between two transforming sections of the branch transmission lines permits independent selection of the characteristic impedance of those sections in the odd and even modes of excitation.
REFERENCES:
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patent: 3091743 (1963-05-01), Wilkinson
patent: 3422377 (1969-01-01), Vient
patent: 3691485 (1972-09-01), Beck
patent: 3742392 (1973-06-01), Schwarzmann
patent: 4129839 (1978-12-01), Galani et al.
Ekinge, A New Method of Synthesizing Matched Broadband TEM-Mode Three-Ports, IEEE Trans. on MTT, vol. MTT-19, No. 1, Jan. 71, pp. 81-88.
Cohen Samuel
Gensler Paul L.
Maginniss Christopher L.
RCA Corporation
Troike Robert L.
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