An Eight-Way Radial Switch Based on SIW Power Divider

Abstract

This paper presents a single-pole eight-throw switch, based on an eight-way power divider, using substrate integrate waveguide(SIW) technology. Eight sectorial-lines are formed by inserting radial slot-lines on the top plate of SIW power divider. Each sectorial-line can be controlled independently with high level of isolation. The switching is accomplished by altering the capacitance of the varactor on the line, which causes different input impedances to be seen at a central probe to each sectorial line. The proposed structure works as a switching circuit and an eight-way power divider depending on the bias condition. The change in resonant frequency and input impedance are estimated by adapting a tapered transmission line model. The detailed design, fabrication, and measurement are discussed.

W-Band Siw Power Combiner/Divider Based on the Antipodal Fin-Line Siw-Rw Transition and Longitudinal-Slot Coupling Techniques

“…In the past few years, various SIW power combing/dividing designs have been reported [11][12][13][14][15][16][17][18][19][20], since the realization of SIW [9]. For examples, Germain et al firstly proposed two kinds of basic Y-shaped and T-shaped two-way power dividers which show the relative bandwidths of 25.2% and 10.2%, respectively [11].…”

“…Moreover, by using the multi-mode interference imaging theory, Yang et al realized a K-band 6-way multi-mode SIW (MMSIW) power combiner/divider [15]. Quite recently, some other researchers reported high-performance power combiners/dividers based on the various realization methods as well [16][17][18][19][20].…”

Switchable power combining circuit for improved graceful‐degradation performance

“…Increasing demands for long‐range communication, including radar, commercial, and satellite communications have necessitated the development of power combining techniques that can provide higher output power than what is available from a single amplifier. Various power combining techniques have been introduced to satisfy this need . However, component failure causes imperfect summation of power and results in the degradation of output power level.…”