New Radial Power Combining/Dividing Method Based on Circular Sectoral Waveguide TE01 Mode

Liu, Yaqian; Zhan, Min; Ma, Yuanbo

doi:10.1007/s10762-022-00848-4

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…In the field of terahertz, most of the transmission line structures used in power dividers are waveguide structures to reduce insertion loss and increase power capacity [1]. For example: rectangular waveguide power dividers [2][3][4][5], ridge waveguide-based power dividers [6], circular sectoral waveguide [7], and radial waveguide power dividers [8][9][10][11]. Compared to cascaded power dividers [12,13], radial power dividers [14,15] have a symmetrical structure.…”

Section: Introductionmentioning

confidence: 99%

Terahertz Four-Way Out-of-phase Waveguide Power Combiner with Low Insertion Loss

Song

Zhao

Yang

2023

Preprint

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A terahertz four-way out-of-phase waveguide power combiner has been proposed and analyzed in this paper. The input return loss of the circuit is improved greatly by the power combiner through the metal matching square column in the center of the circuit node, and the four output ports are reversed in equal amplitude. A simple equivalent circuit model for this power-combining structure has been developed. In order to verify the validity of the proposed structure, a four-way power combiner structure with the center frequency of 145GHz has been designed and fabricated with conventional machining. The measured input return loss of the circuit is greater than 16dB from 130GHz to 162GHz. And the insertion loss is less than 0.5dB from 140GHz to 160GHz, which corresponds to a power-combining efficiency of 90%.

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