1. Electronically Controllable Phase Shifter with Progressive Impedance Transformation at K Band
- Author
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Antonio Alex-Amor, Cleofás Segura-Gómez, Pablo Padilla, Juan F. Valenzuela-Valdes, Angel Palomares-Caballero, Mohamed T. ElKhorassani, and Pablo Escobedo
- Subjects
Fluid Flow and Transfer Processes ,Materials science ,Microwave tunable phase shifters ,Dynamic range ,business.industry ,Process Chemistry and Technology ,020208 electrical & electronic engineering ,Bandwidth (signal processing) ,General Engineering ,Phase (waves) ,020206 networking & telecommunications ,02 engineering and technology ,Computer Science Applications ,K band ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,General Materials Science ,Hybrid coupler ,3 dB/90º coupler ,business ,Instrumentation ,Phase shift module ,Electrical impedance ,Electronic circuit - Abstract
This communication presents the design of a two-port electronically tunable phase shifter at K band. The phase shifter consists of a 3 dB hybrid coupler loaded with reflective phase-controllable circuits. The reflective circuits are formed by varactors and non-sequential impedance transformers which increase the operational bandwidth and the provided phase shift. The final phase shifter design is formed by two loaded-coupler stages of phase shifting to guarantee a complete phase turn. An 18 GHz phase shifter design with dynamic range of 600 degrees of phase shift is depicted in this document. The prototype is manufactured and validated through measurements showing good agreement with the simulation results., This work has been partially supported by the TIN2016-75097-P, RTI2018-102002-A-I00, and EQC2018- 004988-P projects of the Spanish National Program of Research, Development, and Innovation and project B-TIC-402-UGR18 of Junta de Andalucía
- Published
- 2019