Work

A GCPW slow‐wave transmission line with improved wavelength reduction technique by adopting capacitor array

Year: 2024

Type: article

Abstract: This letter presents a grounded coplanar waveguide (GCPW) slow‐wave transmission line (SWTL) with an improved wavelength reduction technique by adopting capacitor array. By cross‐interleaving additional capacitors between a signal line and side ground planes, the total capacitance in the capacitor array increases approximately two times compared to the conventional structure, allowing designers to choose a smaller signal conductor's width for higher inductance, thus, improving wavelength reduction performance while preserving the same characteristic impedance. At the 150 GHz frequency of interest, the proposed GCPW SWTL shows approximately 20% and 62.16% reduction in wavelength compared to the reported GCPW SWTL and regular CPW, respectively, with the same characteristic impedance. To prove the effectiveness of the proposed SWTL concept, the proposed GCPW SWTL test patterns are fabricated in a 65 nm CMOS process.

Source: Microwave and Optical Technology Letters

DOI: 10.1002/mop.34282

Authors: Ngu Quyen Chang, Byeonghun Yun, Dae‐Woong Park, Sang‐Gug Lee

Institutions: Korea Advanced Institute of Science and Technology, Agency for Science, Technology and Research, Institute of Microelectronics, Seoul National University of Science and Technology

Language: English

Topic: Microwave Engineering and Waveguides

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: bronze

Funders: Iran Telecommunication Research Center, Ministry of Science and ICT, South Korea, Institute for Information and Communications Technology Promotion