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Abstract
This paper presents the design and performance of a low-loss rectangular air-filled coaxial cable. A high-precision micromachining technique is used to fabricate the cable. It is assembled by bonding together five layers of gold-coated SU-8 photoresist fabricated using the ultraviolet photolithographic technique. As the cable is air filled, both the dielectric and radiation losses are negligible. The cross coupling is also very weak between the cable and other parts of the circuit in a system. These advantages make the proposed cable a very good candidate for low-cost high-performance miniaturized transmission lines. The cable is designed to work in the frequency range of 14-36 GHz, which covers the whole K-band. The size of the cable is only 8.9 mm x 8.6 mm x 1.5 mm and the measured minimum insertion loss of the as-made cable is approximately 0.6 dB. The return loss is better than 15 dB in the passband.
Original language | English |
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Pages (from-to) | 1548-1553 |
Number of pages | 6 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Volume | 55 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Jul 2007 |
Keywords
- wideband filter
- SU-8
- rectangular coaxial cable
- micromachine
- K-band
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Dive into the research topics of 'Design and High Performance of a Micromachined K-Band Rectangular Coxial Cable'. Together they form a unique fingerprint.Projects
- 1 Finished
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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