Low loss power splitter

Details Low loss power splitter Low loss power splitter

1988-12-05

1989-10-17

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333128, H01P 512

Patent

active

048750247

ABSTRACT:
Apparatus for dividing and combining electromagnetic energy, particularly at microwave frequencies. An input port (4) is positioned generally equidistant from each of n output ports (5,6;31,32,33 . . . ), where n is a finite integer greater than 1. n quarter-wavelength impedance transforming conductors (20;41,42,43 . . . ) couple the input port (4) to the n output ports (5,6;31,32,33 . . . ), respectively. Positioned between each pair of adjacent output ports (5,6;31,32,33) is an isolation resistor (7). A pair of half-wavelength unity impedance transformers (21) couples each isolation resistor (7) to its two associated output ports (5,6;31,32,33 . . . ), respectively. The invention allows greater geometrical freedom than prior art splitters, and offers a lower loss for a given frequency.

REFERENCES:
patent: 3091743 (1963-05-01), Wilkinson
patent: 4254386 (1981-03-01), Nemit et al.
patent: 4401955 (1983-08-01), Yorinks et al.
patent: 4450418 (1984-05-01), Yum et al.
patent: 4595891 (1986-06-01), Cronauer
patent: 4639694 (1987-01-01), Seino et al.
patent: 4721929 (1988-01-01), Schnetzer
patent: 4725792 (1988-02-01), Lampe, Jr.
Wahi, Wideband, Unequal Split Ratio Wilkinson Power Divider, Microwave Journal, Sep. 1988, pp. 205-209.

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