SPDT discrete switch design using switchable SIW resonators for millimeter wave MIMO transceiver

Abstract

A single pole double throw (SPDT) discrete switch design using switchable substrate integrated waveguide (SIW) resonators is proposed in this paper. It was designed for the millimeter wave multiple input multiple output (MIMO) transceiver. An example application is for 5G communication in 26 GHz band. High isolation between transmitter and receiver (in the transceiver) is needed in SPDT switch design to minimize any high radio frequency (RF) power leakage in the receiver. Therefore, the use of switchable SIW resonators can achieve higher isolation if compared to the conventional series SPDT switch, where the isolation of the proposed SPDT is depend on the bandstop response of the SIW resonators. The switchable SIW resonators can be switched between allpass and bandstop responses to allow the operation between transmit and receive modes. As a result, the simulation and measurement showed that the proposed SPDT switch produced an isolation higher than 25 dB from 24.25 to 27.5 GHz compared to the conventional design.

Low‐cost ultra‐wideband discrete SPDT switch for K–Ku band in automotive applications and fifth‐generation systems

“…22 Several circuit topologies have been suggested for switch design, including substrate-integrated waveguide switches. 23,24 While these switches have shown the potential to offer wideband solutions for array antennas, their design can often be bulky and prone to high levels of loss. 25 When utilizing the single-pole-double-throw (SPDT) Switch in transmit mode, it is crucial to take into account its high power handling requirements.…”

“…Several circuit topologies have been suggested for switch design, including substrate‐integrated waveguide switches 23,24 . While these switches have shown the potential to offer wideband solutions for array antennas, their design can often be bulky and prone to high levels of loss 25 …”

Design of matrix, distributive round robin, ping pong and enhanced ping lock arbiter for shared resources systems

“…A single pole double throw discrete switch design is introduced using switchable substrate integrated waveguide resonators. It is designed for the millimeter to wave multiple input multiple output transceivers [19]. It uses a multi-layered array of cells known as a 1339 superstrate multi-layer metasurface.…”