Broadband Contactless 90° Waveguide Transition With a U-Shaped Choke Groove

Zhang, Bo; Zhang, Yong; Xiao, Fei

doi:10.1109/lmwc.2022.3177897

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Considering fabrication and assembly errors, conventional subtractive manufacturing faces challenges in maintaining good electrical contact due to mandatory split‐block fabrication. Consequently, contactless designs for ridge transitions have been proposed, 12,13 where electromagnetic fields are partially transmitted through gaps instead of along joint metal. In Reference 12, a contactless coplanar waveguide (CPW) to WG transition is proposed and indicates measured results of RL and IL better than 10 dB and 1.9 dB in 38% bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…In Reference 12, a contactless coplanar waveguide (CPW) to WG transition is proposed and indicates measured results of RL and IL better than 10 dB and 1.9 dB in 38% bandwidth. In Reference 13, a 90° WG transition with U‐shaped choke groove is designed and fabricated. And the measurement shows that in 170–260 GHz, the RL is better than 10 dB while IL is better than 0.2 dB.…”

Section: Introductionmentioning

confidence: 99%

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Broadband ridge waveguide to rectangular waveguide transition design in D‐band

Xu,

Yang,

Guo

et al. 2024

Micro & Optical Tech Letters

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This article presents a D‐band (110–170 GHz) double ridge waveguide (WG) to standard rectangular WG transition with an E‐bend near the WG end. The transition incorporates metal ridge steps as impedance transformers, resulting in a compact total size of 3.53 mm × 1.95 mm × 1 mm. Fabricated using micro metal additive manufacturing with copper in a monolithic back‐to‐back configuration, the transition demonstrates a bandwidth of 50% (105–175 GHz) with an average insertion loss of 0.72 dB and return loss better than 15 dB, respectively. Measurement results align closely with simulation expectations, with deviations attributed to fabrication and assembly errors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%