Apparatus and method for adjusting microwave BPSK modulator and

Details Apparatus and method for adjusting microwave BPSK modulator and Apparatus and method for adjusting microwave BPSK modulator and

1995-10-25

1996-11-12

Grimm, Siegfried H.

Modulators

Phase shift keying modulator or quadrature amplitude modulator

Including discrete semiconductor device

332146, 375279, 455325, 455327, 455330, H04L 2720, H04B 126

Patent

active

055744095

ABSTRACT:
Microwave two-phase modulator and mixer each comprising a balance/unbalance transformer section to which a microwave signal is applied; a synthetic/branching line section which is connected to the both ends of the balancing line of the balance/unbalance transformer section on the balancing line side; isolation diodes are mounted between diode-mounting lines section and fan-shaped patterns; a plurality of modulating characteristic-adjusting, capacitive stubs placed near the diode-mounting lines; an input line; a modulating signal input line; and a modulated signal output line. The modulating characteristics are adjusted by connecting the diode-mounting lines and the plurality of capacitive stubs by bonding wires or cutting some of the connecting wires.

REFERENCES:
patent: 3659206 (1972-04-01), Hallford
patent: 4276521 (1981-06-01), Davidheiser
patent: 5125110 (1992-06-01), Nusair
patent: 5457436 (1995-10-01), Nishida et al.

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