A V-band MMIC Self Oscillating Mixer Active Integrated Antenna Using a Push-Pull Patch Antenna

Wooyeol Choi, Changyul Cheon, Youngwoo Kwon
2006 2006 IEEE MTT-S International Microwave Symposium Digest  
In this paper, a v-band MMIC self oscillating mixer active integrated antenna using a push-pull patch antenna is presented. The SOM AIA is based on the coupled active parallel feedback oscillator. By using a push-pull patch antenna, the isolation between balanced RF input and in-phase local oscillation is established. Furthermore, since the push-pull patch antenna has very low radiation efficiency for the in phase signal injection, the LO radiation was efficiently suppressed. The circuit is
more » ... The circuit is fabricated using the 0.15µm pHEMT process on 100µm thick GaAs substrate. The local oscillation frequency is 58.46GHz. The LO radiation level is measured to be lower than -50dBm at distance of 1cm. The circuit shows about -18.9dB effective isotropic conversion gain at 1.54GHz IF.
doi:10.1109/mwsym.2006.249692 fatcat:ayuup5hzsrfbffuy4rhcjdbogq