Accession Number : ADD012693

Title :   Low Pass T-Section Digital Phase Shifter Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Yarman,Binboga S

Report Date : 16 Dec 1986

Pagination or Media Count : 5

Abstract : A low pass T-section digital phase shifter apparatus having a pair of serially connected inductor-diode combination connected in series which includes a parallel circuit connected between the common junction and ground. The parallel circuit has an inductor in parallel with a series capacitor and diode to provide a balanced insertion loss at each diode switching state. When the diodes are in the forward-biased state they act as closed short circuit switches. When the diodes are reversed-biased, the inductance in the series circuit resonates with the diode capacitance to provide a short path to the RF signal to pass the center frequency of the RF signal at the desired phase. (Patents)

Descriptors :   *PATENTS, *SWITCHING, *SWITCHES, *DIODES, *CIRCUITS, INSERTION LOSS, JUNCTIONS, INDUCTANCE, SHORT RANGE(TIME), CAPACITANCE, PARALLEL ORIENTATION, RADIOFREQUENCY, SIGNALS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE