.pi.-section digital phase shifter apparatus

Adjustable phase and delay shift element

Analog phase shifter using cascaded voltage tunable capacitor

Analog variable phase shifter with active matching circuits

Arrangement and method for phase shifting signals in a telesyste

Arrangement for the transmission of audio signals

Broadband phase shifter and vector modulator

Compactly constructed electromagnetic delay line

Concentrated constant type delay device

Continuously-variable monolithic RF and microwave analog delay l

Delay line

Delay line

Delay line

Delay line

Delay line

Delay line and its manufacturing method

Delay line compensation network

Delay line device and method of making same

Digital phase shifter apparatus

Discrete increment signal processing system using parallel branc