LOW PASS/HIGH PASS FILTER PHASE SHIFTER
Assignee
HITTITE MICROWAVE CORPORATION, INC., 21 CABOT ROAD, WOBURN, MASSACHUSETTS 01801, A MASSACHUSETTS CORP.
Filed
Jul 18, 1988
Granted
Oct 16, 1990
Location
LEXINGTON MA US
Abstract
A compact low pass/high pass filter phase shifter including a semiconductor switch having a control electrode and first and second load electrodes; a first inductance connected in series with one load electrode and second inductance connected in series with the other load electrode; a third inductance connected in parallel with one load electrode to ground and a fourth inductance connected in parallel with the other load electrode to ground; a capacitance connected in series between the control electrode and ground; and means for applying a control signal to the control electrode for switching the semiconductor switch between a first state in which it operates as a low pass filter and a second state in which it operates as a high pass filter to introduce a phase shift in a propagated signal.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 12, 1989
Rescinded
Apr 16, 1990
Duration
1 year
Inventor
- 1YALCIN AYASLI
Record Details
- Patent number
- US 4963773
- Application
- 07220737
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records