Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Patent
1993-11-24
1995-08-08
Gensler, Paul
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
333 21A, 333128, 343756, H01P 507
Patent
active
054402794
ABSTRACT:
An electromagnetic radiation converter for receiving and converting microwave signals having a circular or linear polarization. The converter comprises a waveguide for transmitting both circularly and linearly polarized signals, and a first mode transducer for converting the vertical component of the microwave signal into a corresponding signal on a microstrip line, a second mode transducer for converting the horizontal component of the microwave signal into a corresponding signal on a microstrip line, and means for combining the outputs of the first and second transducers. When receiving a circularly polarized signal, the combination means adjusts the phase of the vertical and horizontal components of a circularly polarized signal such that the phase of the vertical and horizontal components are equal prior to being combined so as to produce a signal equivalent to the circularly polarized signal originally received.
REFERENCES:
patent: 2979679 (1961-04-01), Ellis
patent: 4679249 (1987-07-01), Tanaka et al.
patent: 5043683 (1991-08-01), Howard
patent: 5276410 (1994-01-01), Fukuzawa et al.
Kashima Yukiro
Kinoshita Akira
Gensler Paul
Matsushita Electric - Industrial Co., Ltd.
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