A 30-50 GHz Wide Modulation Bandwidth Bidirectional BPSK Demodulator/Modulator With Low LO Power

作者：Chang Hong Yeh^*; Weng Shou Hsien; Chiong Chau Ching

来源：IEEE Microwave and Wireless Components Letters, 2009, 19(5): 332-334.

DOI：10.1109/LMWC.2009.2017615

• Bidirectional
• binary phase shift keying (BPSK)
• demodulator
• modulator

A 30-50 GHz wide modulation bandwidth bidirectional binary phase shift keying (BPSK) demodulator/modulator using a 2 mu m standard GaAs HBT process is presented in this letter. A single balanced mixer with HBT PN-junction diodes is employed in the circuit design. With a local oscillator (LO) power of 0 dBm, this letter demonstrates a maximum conversion loss of 13 dB, a modulation bandwidth of wider than 3 GHz, and a LO-to-RF isolation of better than 45 dB. The BPSK demodulation or modulation can be performed at the same input/output ports of the circuit, and therefore it can be applied to millimeter-wave (MMW) gigabit bidirectional communication systems to further reduce the complexity of the transceivers.

• 出版日期2009-5
• 单位中央民族大学