Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth
Wang, Yi, Ke, Maolong, Lancaster, M.J. and Huang, F. (2009) Micromachined millimeter-wave rectangular-coaxial branch-line coupler with enhanced bandwidth. IEEE Transactions on Microwave Theory and Techniques, 57 (7). pp. 1655-1660. ISSN 0018-9480 (doi:10.1109/TMTT.2009.2021872)Full text not available from this repository.
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.
|Additional Information:|| Date of Publication : 26 May 2009. Date of Current Version : 10 July 2009. Issue Date : July 2009.|
|Uncontrolled Keywords:||couplers, micromachining, millimeter-wave devices|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|School / Department / Research Groups:||School of Engineering|
School of Engineering > Department of Computer & Communications Engineering
School of Engineering > Mobile & Wireless Communications Research Laboratory
|Last Modified:||13 May 2013 17:37|
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