A 30-50 GHz wide modulation bandwidth bidirectional BPSK demodulator/ modulator with low LO power

Hong Yeh Chang, Shou Hsien Weng, Chau Ching Chiong

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

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 languageEnglish
Article number4840506
Pages (from-to)332-334
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume19
Issue number5
DOIs
StatePublished - May 2009

Keywords

  • Bidirectional
  • Binary phase shift keying (BPSK)
  • Demodulator
  • Modulator

Fingerprint

Dive into the research topics of 'A 30-50 GHz wide modulation bandwidth bidirectional BPSK demodulator/ modulator with low LO power'. Together they form a unique fingerprint.

Cite this