Modulation type independent carrier recovery for broadband wireless communication systems

Harati, P.; Dyskin, Aleks; Mueller, D.; Kallfass, Ingmar

doi:10.1109/irmmw-thz.2017.8066924

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Moreover, in [12], the carrier recovery is based on the frequency multiplication and works for low IF transceivers only which limits the application of this method for direct conversion broadband communication links. In the present work, we introduce an analogue feed-forward carrier recovery method, elaborate the expected performance and its limitation trough simulations and demonstrate the successful demodulation of complex radio frequency (RF) signal for various modulation formats with a single hardware setup [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Analogue feed‐forward carrier recovery for millimetre‐wave broadband wireless links

Harati

Kallfass

2020

IET Microwaves, Antennas & Propagation

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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.

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Section: Introductionmentioning

confidence: 99%

“…To avoid the pulling effect the P LO needs to be stronger than the P Data and a minimum P LO /P Data ratio (hereafter referred to as injection efficiency (IE)) is required. A practical method to measure the minimum IE is proposed in [13].…”

Section: Introductionmentioning

confidence: 99%