Millimeter-wave waveguide-based out-of-phase power divider/combiner using microstrip antenna

Song, Kaijun; Li, Guoliang; Duan, Qi; Hu, Shunyong; Yang, Fan

doi:10.1016/j.aeue.2014.07.003

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…To alleviate this problem and accommodate many trays, there have been several approaches to enlarge the size of the waveguide using the tapered and stepped transitions, while maintaining TE10 mode without generating higher-order modes [12], [13]. Tapered transition takes use of gradual impedance transformation to achieve broadband return loss.…”

Section: Introductionmentioning

confidence: 99%

Ka-Band Tray-Type Spatial Power Combiner Using H-Plane Expanded Waveguide With Side-Ridges

Park

Jeong

2023

IEEE Access

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A tray-type spatial power combiner is proposed at Ka-band using an H-plane expanded waveguide with side-ridges and a dipole transition array. In order to overcome the small size of the Ka-band standard waveguide and accommodate as many as trays (six trays in this work), the H-plane of the waveguide is expanded by three times using two-stepped waveguide transition. A circular post is employed to effectively suppress higher-order modes in the expanded waveguide. In addition, a side-ridged waveguide is proposed to reduce non-uniformity in the field and power distribution along the expanded H-plane which seriously degrades power combining efficiency. It boosts the electric field close to the waveguide sidewalls by adding the metallic ridges which reduces the waveguide height at the sides. It is shown from the simulation that the proposed side-ridged waveguide can evenly distribute the electromagnetic power and reduce the magnitude imbalances between the trays. In addition, a capacitive iris is introduced in the ridges to improve the phase balance as well. The H-plane expanded waveguide with side-ridges was fabricated and the measurement showed an insertion loss as low as 0.2 dB at Ka-band. Then, six trays consisting of dipole transition and microstrip line on the dielectric substrate was accommodated between the H-plane expanded waveguides with side-ridges. The overall power combining system exhibited the measured insertion loss of 1.2 dB (backto-back loss) at Ka-band. This result belongs to the excellent performance in terms of insertion loss and the number of the trays among the tray-type spatial power combiners reported at Ka-band.INDEX TERMS Expanded waveguide, millimeter-wave, spatial power combiner, waveguide transitions.

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Section: Introductionmentioning

confidence: 99%

Ka-Band Tray-Type Spatial Power Combiner Using H-Plane Expanded Waveguide With Side-Ridges

Park

Jeong

2023

IEEE Access

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“…Specifically, the spatial combining technology has remarkable superiority in multi-channel power combining, since its combining efficiency is hardly affected by the combining number. Moreover, uniting the advantages of a new type of electromagnetic waveguide structure-substrate integrated waveguide (SIW) [9] and the spatial power combining technology, various power combining implementation solutions in millimeter wave band have been proposed recently [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Compact Multi-Layer Four-Way Siw Power Combiners/Dividers Operating at W-Band

Wu¹,

Hu²,

Wang³

et al. 2016

PIER C

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Abstract-In this paper, two compact multi-layer four-way substrate integrated waveguide (SIW) power combiners/dividers operating at W-band are analyzed and demonstrated experimentally/numerically. Based on the double-layer SIW broadside slot directional coupler, a four-way power combiner/divider is proposed for the first time. And a four-layer four-way SIW power combiner/divider is demonstrated experimentally, by using the transition structure between high-performance multi-layer SIWs and rectangular waveguide. Both SIW power combiners/dividers show high port-isolation, low loss, high efficiency, wide-band, and small lateral size.

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Dual‐passbandbandpass‐filteringpower divider usinghalf‐modesubstrate integrated waveguide resonator with high frequency selectivity

Song

Luo

Yao

et al. 2020

Int J RF Microw Comput Aided Eng

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Millimeter-wave waveguide-based out-of-phase power divider/combiner using microstrip antenna

Cited by 7 publications

References 29 publications

Ka-Band Tray-Type Spatial Power Combiner Using H-Plane Expanded Waveguide With Side-Ridges

Ka-Band Tray-Type Spatial Power Combiner Using H-Plane Expanded Waveguide With Side-Ridges

Compact Multi-Layer Four-Way Siw Power Combiners/Dividers Operating at W-Band

Dual‐passbandbandpass‐filteringpower divider usinghalf‐modesubstrate integrated waveguide resonator with high frequency selectivity

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