Top-Layer Wideband Transition from Waveguide to Planar Differential Line for 60 GHz Applications

Churkin, Sergey; Mozharovskiy, Andrey; Myskov, Alexander; Artemenko, Alexey; Maslennikov, Roman

doi:10.23919/eumc.2018.8541701

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…While these transitions exhibit a wide bandwidth, their operation is low frequencies. Therefore, comparisons with the most similar methods are provided to evaluate the effectiveness of this paper, focusing mainly on the waveguide-to-differential-line transitions [39]- [43], but the bandwidth is still not wide. For [49], the bandwidth of the reflections less than −10 dB was 66.3 GHz (23.6%) and the measured transmission coefficient for the single transition was −2.6 dB at 275 GHz.…”

Section: Comparison Of Performancesmentioning

confidence: 99%

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Broadband Waveguide-to-Differential-Line Transition in Multi-Layer Substrates With Triple Stacked Patch in 300 GHz Band

Chokchai,

Sugimoto,

Sakakibara

et al. 2024

IEEE Access

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A broadband waveguide-to-differential-line transition with a triple stacked patch is proposed for use in 300 GHz band. This transition consists of differential signal lines inserted into the waveguide region from both broad walls of the waveguide. A triple circular stacked patch element was used for broadband transmission from the waveguide to the planar differential line formed in a multi-layer substrate. Concurrently, the optimized arrangement of via holes can prevent electric field leakage efficiently and improve the transmission characteristic in a high-frequency band. The geometry of the transition was optimized through electromagnetic simulations using the finite element method. Measurements and simulations were implemented to evaluate the performance of the transition. The measured result of the transition shows the bandwidth of the S11 below −10 dB was over 100 GHz.

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Section: Comparison Of Performancesmentioning

confidence: 99%

“…A waveguide-to-differential-line transition has also been proposed [41]. The waveguide-to-differential-line transition in a multi-layer substrate was presented in [42] and [43]. In the core and prepreg layers, when electromagnetic waves pass through multiple substrates, multiple resonances can occur, thereby increasing the bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Broadband Waveguide-to-Differential-Line Transition in Multi-Layer Substrates With Triple Stacked Patch in 300 GHz Band

Chokchai,

Sugimoto,

Sakakibara

et al. 2024

IEEE Access

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“…The radiated field passes through the lower dielectric layers along the apertures into the waveguide. When a square patch is used similar to that in conventional transitions [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], the coupled currents flow parallel to the signal lines that are orthogonal to the electric field of the TE 10 mode of the waveguide. To overcome the strong coupling from the signal lines to the patch and for effective TE 10 mode polarization from perpendicularly connected differential signal lines, a symmetrical X-shaped patch is proposed in this article.…”

Section: Structure and Principlementioning

confidence: 99%

“…This is because the signal lines are excited 180 • out of phase. Therefore, a patch in the waveguide is excited by directly connecting the signal lines of the differential line to the narrow wall of the waveguide [21], [22]. Additionally, aperture excitation techniques have been applied to the waveguide [23], [24].…”

Section: Introductionmentioning

confidence: 99%

Broadband Differential-Line-to-Waveguide Transition in Multi-Layer Dielectric Substrates With an X-Shaped Patch Element in 280 GHz Band

Yamazaki

Sugimoto

Sakakibara

et al. 2023

IEEE Trans. Microwave Theory Techn.

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A broadband differential-line-to-waveguide transition covering the 260-300 GHz band was developed in this study. This transition consists of a differential line inserted from the narrow wall of the waveguide that excites an X-shaped patch located at the waveguide center. As the two corners of the patch are excited electromagnetically via differential signal lines in the opposite phase, orthogonal current components that radiate the TE 10 mode into the waveguide are generated. Broadband operation is achieved via the double resonance of the X-shaped patch and a cavity formed by the via-hole arrangement with apertures patterned in a multi-layer substrate. The transition geometries are optimized via electromagnetic simulation using a finite element method. Transition performance is evaluated through measurements and simulations.

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“…In vertical structure connection, the study of the waveguide transition are forcus on the pattern on the PCB and aligns to RWG port. Most of the pattern are patch [11][12][13] slot line 14 type are also reported. Even though they cut off the back cavity, they must modify the RWG.…”

Section: Introductionmentioning

confidence: 99%

Novel millimeter‐wave vertical transition between rectangular waveguide and balanced transmission line using embedded magnetic closed loops

Zhou

Song

Wilson

et al. 2023

Micro & Optical Tech Letters

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A novel transition between rectangular waveguide (RWG) and balanced transmission line with magnetic closed loops has been developed. A conventional RWG directly mounts on a printed circuit board that actualizes energy transition. Using a pair of centrosymmetric magnetic closed loop, the TE10 mode converts to TEM mode, and balanced ports are obtained. Based on the structural characteristics investigation, the transition is fabricated and measured. The center frequency of the operation is 32.5 GHz, and the bandwidth is wider than 27% for insertion loss no more than 0.6 dB and return loss more than 15 dB. Between the two balanced ports, the magnitude imbalance is less than 0.4 dB, and the phase difference is less than 3°. Integration within the balanced ports makes the transition a promising candidate for miniaturized system in antenna.

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Top-Layer Wideband Transition from Waveguide to Planar Differential Line for 60 GHz Applications

Cited by 6 publications

References 5 publications

Broadband Waveguide-to-Differential-Line Transition in Multi-Layer Substrates With Triple Stacked Patch in 300 GHz Band

Broadband Waveguide-to-Differential-Line Transition in Multi-Layer Substrates With Triple Stacked Patch in 300 GHz Band

Broadband Differential-Line-to-Waveguide Transition in Multi-Layer Dielectric Substrates With an X-Shaped Patch Element in 280 GHz Band

Novel millimeter‐wave vertical transition between rectangular waveguide and balanced transmission line using embedded magnetic closed loops

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