A Novel Four-Way Ka-Band Spatial Power Combiner Based on HMSIW

Abstract

In this letter, a simple low-loss planar spatial powercombining architecture based on half model substrate integrated waveguide (HMSIW) is proposed and studied. The power-combining structure is realized by transition between a HMSIW and parallel multiport planar microstrip lines. The power combiner is simulated and measured at 34.5-36.5 GHz. Measured results show a good agreement with simulation and a combining efficiency of 82% is achieved at 35 GHz.Index Terms-Half model substrate integrated waveguide (HMSIW), planar circuit, spatial power combiner and divider, transition.

Compact Filtering Power Divider Based on Half Mode Substrate Integrated Waveguide

“…Several PDs based on SIW and HMSIW have been investigated [10][11][12][13][14][15][16][17]. However, the proposed circuits in [10][11][12][13][14] do not include the bandpass filtering response, which restricts their applications in practical systems. In [15], a multilayer SIW PD with bandpass-filtering response is reported.…”

A wideband four-way power divider/combiner based on substrate integrated waveguide and double-layer finline

“…Due to the low power level of an individual solid-state device, it is necessary to combine power from multiple devices to obtain the desired power level. Some power-combining technologies based on finline and substrate integrated waveguide (SIW) have been proposed [1,2,3,4,5,6]. In [1,2,3], the power combiners based on finline and double-layer finline have been proposed.…”

“…These combining structures can be fabricated using the standard printed circuit board (PCB) process and easily assembled into three-dimension waveguide structure. SIW has been a popular transmission in recent years [4,5,6,7], which can offer a compact and costeffective solution for integrating microwave circuits. Some combiners based on SIW have been proposed [4,5].…”

“…SIW has been a popular transmission in recent years [4,5,6,7], which can offer a compact and costeffective solution for integrating microwave circuits. Some combiners based on SIW have been proposed [4,5]. In [4], a printed horn combiner/divider is presented.…”

“…In [4], a printed horn combiner/divider is presented. In [5], a four-way combiner based on half model SIW is proposed. In this paper, based on SIW and double-layer finline, a novel wideband fourway power divider/combiner designed at 29-40 GHz is presented, as shown in Fig.…”