Title :
A simple technique for the design of MMIC 90° phase-difference networks
Author :
Mahfoudi, Mustapha ; Alonso, José I.
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
fDate :
10/1/1996 12:00:00 AM
Abstract :
In this paper, a simple technique for the design of broadband 90° phase-difference networks, using balanced and unbalanced all-pass network topologies, is presented. In the developed method, the element values of the structures are calculated as function of two design variables: Q0 and r. Utilizing this approach, a 90° phase shifter has been realized, having less than 2° phase error and better than 0.5 dB amplitude error in the operating band from 0.7 to 3.5 GHz
Keywords :
MMIC phase shifters; RC circuits; active filters; all-pass filters; integrated circuit design; integrated circuit reliability; network topology; 0.7 to 3.5 GHz; MMIC; all-pass network; amplitude error; balanced topologies; design variables; phase error; phase shifter; phase-difference networks; unbalanced topologies; Band pass filters; Design methodology; Frequency; Integrated circuit technology; MMICs; Microwave circuits; Network topology; Optical modulation; Phase modulation; Phase shifters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
