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2006 IEEE MTT-S International Microwave Symposium Digest
We present an integrated wideband directional coupler for millimeter-wave applications implemented in lowcost silicon technologies. It is constructed using broad-side coupled coplanar waveguides (CPW), taking advantage of available multiple metal layers in silicon technologies. A prototype coupler was designed and fabricated using a commercial ¡ £ ¢ ¥ ¤ § ¦ © digital CMOS technology with low-resistivity epi substrate. It achieves a 10-40 GHz frequency range (3-dB bandwidth) with 7 dB to 10 dBdoi:10.1109/mwsym.2006.249610 fatcat:mtkr7vscxzbhbj6sieg4nmhrce