Analogue feed‐forward carrier recovery for millimetre‐wave broadband wireless links. Issue 5 (21st February 2020)

• Record Type: Journal Article
• Authors: Harati, Parisa; Kallfass, Ingmar
• Is Part Of: IET microwaves, antennas & propagation. Volume 14:Issue 5(2020)
• Page Start: 366
• Page End: 373
• Publication Date: 2020-02-21
• Subjects: demodulation -- frequency dividers -- band‐pass filters -- broadband networks -- millimetre wave communication -- radio links -- radio transceivers -- feedforward -- injection locked oscillators; analogue feed‐forward carrier recovery -- broadband wireless communication systems -- radio frequency port -- strong LO feed‐through -- carrier recovery block -- high carrier frequencies -- local oscillator signal feed‐through -- millimetre‐wave broadband wireless links -- analogue modulation‐type independent feed‐forward carrier recovery -- narrowband bandpass filter -- frequency divider‐by‐n -- injection‐locking mode -- up‐converter -- direct conversion transmitter; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2019.0506
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : An analogue modulation‐type independent feed‐forward carrier recovery approach for broadband wireless communication systems is introduced in this work. The focus is on the deliberately increased local oscillator (LO) signal feed‐through to the radio frequency (RF) port of the up‐converter in a direct conversion transmitter (TX). The strong LO feed‐through is used at the receiver (RX) side to demodulate the RF signal. The heart of the carrier recovery block is a narrowband bandpass filter (BPF) and a frequency divider‐by‐ n operated in injection‐locking mode to the strong LO feed‐through. The proposed method is investigated through circuit level simulations; while its feasibility is examined via the successful demodulation of complex data with various modulation types up to 8 Gbps for an E‐band front‐end. This method can be used for transceivers working at high carrier frequencies as far as the realisation of frequency divider circuits and narrowband BPFs is technically feasible.