Highly Selective Bandpass Switch Block With Applications of MMIC SPDT Switch and Switched Filter Bank

Di Lu; Junbo Liu; Ming Yu

2022

10.1109/LSSC.2022.3194410

IEEE Solid-State Circuits Letters   Impact Factor & Quartile

2573-9603

2573-9603

A new bandpass single-pole-single-throw (SPST) switch (BPSW) is proposed in this letter. The proposed BPSW configuration can be directly employed as a building block to construct the single-pole-N-throw (SPNT) switch or the highly selective switched filter bank with no need for the extra control circuit, thus effectively reducing the circuit size and lowering the loss. The operation mechanism of the BPSW is analyzed, and the filter-synthesis-based design method is given. For demonstration, 3-6 and 4-8 GHz BPSW blocks are built using the commercial GaAs pHEMT process to construct the single-pole-double-throw (SPDT) switch as well as the two-way integrated switched filter bank. The filter bank is implemented in 0.25-mu m GaAs pHEMT process. Two passbands are measured at 2.7-5.79 and 3.72-7.35 GHz with a minimum insertion loss of 2.7 dB, while the all-OFF state can be set with over 35-dB suppression. The measurement results are in good agreement with the simulation that verifies the concept.

Fully integrated filter bank highly selective passband passband switch~(BPSW) building block single-pole--double-throw (SPDT) switch

ESCI ; EI

English

First

National Natural Science Foundation of China[62101233] ; Shenzhen Key Laboratory of EM Information[ZDSYS20210709113201005]

Computer Science ; Engineering

Computer Science, Hardware & Architecture ; Engineering, Electrical & Electronic

WOS:000838665900003

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

20223312566814

Gallium arsenide ; III-V semiconductors ; Microwave circuits ; Microwave filters ; Microwave resonators ; Millimeter waves ; Poles ; Semiconducting gallium ; Semiconductor switches

Structural Members and Shapes:408.2 ; Electric Filters:703.2 ; Electromagnetic Waves:711 ; Semiconducting Materials:712.1 ; Single Element Semiconducting Materials:712.1.1 ; Electronic Components and Tubes:714 ; Semiconductor Devices and Integrated Circuits:714.2 ; Chemical Products Generally:804

Web of Science

Shenzhen Key Laboratory of EM Information and the Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, China

Di Lu,Junbo Liu,Ming Yu. Highly Selective Bandpass Switch Block With Applications of MMIC SPDT Switch and Switched Filter Bank[J]. IEEE Solid-State Circuits Letters,2022,5:190-193.

Di Lu,Junbo Liu,&Ming Yu.(2022).Highly Selective Bandpass Switch Block With Applications of MMIC SPDT Switch and Switched Filter Bank.IEEE Solid-State Circuits Letters,5,190-193.

Di Lu,et al."Highly Selective Bandpass Switch Block With Applications of MMIC SPDT Switch and Switched Filter Bank".IEEE Solid-State Circuits Letters 5(2022):190-193.