DOAJ Open Access 2024

Broadband GCPW-to-Waveguide Transition in Multi-Layer Dielectric Substrates With Modified V-Shaped and Double Patch in 270 GHz Band

Chatchai Chokchai Yoshiki Sugimoto Kunio Sakakibara Makoto Yamazaki Henry Abu Diawuo +1 lainnya

Abstrak

This paper proposes a broadband single-ended line-to-waveguide transition that covers the 240–300 GHz band. The transition comprises a tapered grounded coplanar waveguide (GCPW) feed line, inserted from the narrow wall of the waveguide exciting a modified V-shaped patch located at the center of the waveguide. Broadband operation is achieved via multiple resonances of the modified V-shaped patch, a double-stacked rectangular patch, and cavity within the multi-layer substrates. The transition geometries are optimized via electromagnetic simulations using the finite element method. The transition design is successful within fabrication limitations in the terahertz frequency band. Subsequent evaluations of transition performance are conducted through measurements and simulations. Experimental results show a bandwidth below −10 dB for <italic>S</italic><sub>11</sub> spanning 71.5 GHz. Furthermore, the measured insertion loss remains consistent at 2.5 dB at the center frequency of 275 GHz.

Topik & Kata Kunci

Telecommunication Electric apparatus and materials. Electric circuits. Electric networks

Penulis (6)

Chatchai Chokchai

Yoshiki Sugimoto

Kunio Sakakibara

Makoto Yamazaki

Henry Abu Diawuo

Nobuyoshi Kikuma

Format Sitasi

APA MLA BibTeX

Chokchai, C., Sugimoto, Y., Sakakibara, K., Yamazaki, M., Diawuo, H.A., Kikuma, N. (2024). Broadband GCPW-to-Waveguide Transition in Multi-Layer Dielectric Substrates With Modified V-Shaped and Double Patch in 270 GHz Band. https://doi.org/10.1109/JMW.2024.3413791

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Informasi Jurnal

Tahun Terbit: 2024
Sumber Database: DOAJ
DOI: 10.1109/JMW.2024.3413791
Akses: Open Access ✓