Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth

Yi Wang; Mao Ke; Michael Lancaster; Frederick Huang

doi:10.1109/TMTT.2009.2021872

Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth

Yi Wang^*, Mao Ke, Michael Lancaster, Frederick Huang

^*Corresponding author for this work

Electronic, Electrical and Systems Engineering

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed.

Original language	English
Article number	4967866
Pages (from-to)	1655-1660
Number of pages	6
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	57
Issue number	7
DOIs	https://doi.org/10.1109/TMTT.2009.2021872
Publication status	Published - 1 Jul 2009

Keywords

millimeter-wave devices
Couplers
micromachining

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics
Radiation

Access to Document

10.1109/TMTT.2009.2021872

Millimetre Wave Micromachined Devices for Communications and Radar
Lancaster, M., Jiang, K., Gardner, P., Hall, P., Huang, F. & Prewett, P.
Engineering & Physical Science Research Council
1/12/06 → 31/05/10
Project: Research Councils

Cite this

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abstract = "Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed.",

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N2 - Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed.

AB - Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed.

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JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

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ER -

Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth

Abstract

Keywords

ASJC Scopus subject areas

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Projects

Millimetre Wave Micromachined Devices for Communications and Radar

Cite this