Abstract
A 30-50 GHz wide modulation bandwidth bidirectional binary phase shift keying (BPSK) demodulator/modulator using a 2 μm 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.
Original language | English |
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Article number | 4840506 |
Pages (from-to) | 332-334 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 19 |
Issue number | 5 |
DOIs | |
State | Published - May 2009 |
Keywords
- Bidirectional
- Binary phase shift keying (BPSK)
- Demodulator
- Modulator