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Micro‐coaxial Ka‐band Gysel power dividers

2009; Wiley; Volume: 52; Issue: 2 Linguagem: Inglês

10.1002/mop.24956

1098-2760

Yuya Saito, D. Fontaine, Jean‐Marc Rollin, Dejan S. Filipović,

Electromagnetic Compatibility and Noise Suppression

Abstract Monolithic, 450‐μm tall, rectangular coaxial Gysel divider is presented in this article. The divider is fabricated by a surface micromachining process with six sequentially deposited copper layers. Athree‐port, resistor‐less divider has overall loss of 0.6 dB at 30 GHz, input port reflection coefficient better than −10 dB, and output amplitude and phase misbalances of ±0.18 dB and ±1.8°, respectively, throughout Ka‐band. The device is designed in a way that permits straightforward realization of a Gysel divider with integrated resistors. Electromagnetic and electrothermal analyses and design of the divider are conducted, and good agreement with measurements is obtained. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 474–478, 2010; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.24956