A 24GHz Sub-Harmonically Image Rejection Mixer with Various Asymmetrical Diode Pair
In this work , we compare three different mixing anti-parallel diode pair (APDP) which is EE/ED/DD mode for single side-band sub-harmonically image rejection up converter mixer (SHIRM ),we analysis the APDP effect about Image Rejection Ratio (IRR) and Conversion Loss(CL). This structure is a 24G SHIRM using reentrant couplers for radio frequency (RF)and the quarter-wavelength line for local frequency (LO ). The SHIRM is realized size employing four anti-parallel diode pairs for mixing frequency, fabricated in a 0-5-um GaAs process. And the proposed circuit with a symmetric layout provides good matches on amplitude and phase performances. The measured results exhibit a minimum conversion loss of 16.25 dB for DD mode, a maximum image rejection ratio of 20.4 dB for EE mode finally all ports isolation better than 10 dB. The chip area is very compact, only 1*1 mm2.
Image rejection mixer ( IRM ) reentrant coupler sub-harmonically pumped mixer ( SHM ) antiparallel diode pair (APDP)
Shuan-Ming Li Che-Yu Kuo Hsien-Chin Chiu
Chang Gung University, Electronics Engineering
国际会议
成都
英文
521-524
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）