Wave transmission lines and networks – Coupling networks – With impedance matching
Patent
1982-06-04
1985-01-15
Gensler, Paul
Wave transmission lines and networks
Coupling networks
With impedance matching
333238, 333246, H01P 500
Patent
active
044940831
ABSTRACT:
An impedance matching stripline transition for microwave signals which are conducted from a stripline circuit on one laminate (2) to another laminate (4) through a number of intermediate laminates (3). The connection between an incoming stripline circuit (21) on one laminate (2) to the outgoing stripline circuit (41) on the other laminate is performed as a short coaxial line. The outer conductor of the coaxial line is formed by a number of through-plated holes (12, 13, 23, 33, 43) in horseshoe form around a central conductor of through-plated holes (24, 34). The outer conductor is connected with the ground plane (31, 11, 45) of the laminates. They serve simultaneously as a suppressor of undesired modes in the microwave signals which are supplied to the transition via the conductor (21).
REFERENCES:
patent: 3303439 (1967-02-01), Fulp
patent: 3533023 (1970-10-01), Friend
patent: 3757272 (1973-09-01), Laramee et al.
patent: 3895435 (1975-07-01), Turner et al.
patent: 4080579 (1978-03-01), Fassett
patent: 4262265 (1981-04-01), Nygren et al.
Microwave Transmission Circuits, publication 12/49 Radio Fernsehen Electronik, vol. 28, no. 8, 8/79, pp. 500-502.
Josefsson Lars G.
Moeschlin Lars F.
Svensson Bengt T.
Gensler Paul
Telefonaktiebolaget L M Ericsson
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