Analog Carrier Recovery for Broadband Wireless Communication Links

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

doi:10.23919/eumc.2018.8541539

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…To mitigate the influence of a strong carrier at the mixer's input, a dc cancellation circuit can be incorporated at the output stage of the mixer [25], reducing the influence of

LL S_{FE}

on the EVM. Alternatively, an adjustable phase shifter at the input of the front‐end can facilitate the mitigation of the output dc offset [14].…”

Section: Discussionmentioning

confidence: 99%

“…Since the frequency divider‐by‐two can be characterised by its input power sensitivity, it can be stated that to reject a modulated data envelope, the leaked signal should be above the sensitivity, whereas an integrated power of the transmitted data should be below. A brief theoretical description of the effect in the case of the fastest non‐return‐to‐zero code is provided in [14].…”

Section: System Studymentioning

confidence: 99%

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Feasibility study of the feed‐forward carrier recovery technique for E‐band integrated receivers

Dyskin

Kallfass

2019

IET Circuits, Devices & Systems

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A feasibility study of a carrier recovery technique based on a feed-forward controlled leakage transmission carrier is presented. The study proposes a receiver topology and verifies its feasibility by means of the system-level simulations. The results of the study indicate that the proposed technique is theoretically modulation-independent and can be used with each modulation format. To demonstrate a practical feasibility, a BPSK receiver topology is proposed and based on it a demonstrator chip is implemented in a SiGe 0.13 μm heterojunction bipolar transistor technology. To reduce the complexity of the integrated receiver and to sustain low risks at the first production run, the receiver was implemented as all-resistive. The carrier recovery circuit on the chip comprises a static frequency divider and a K a-band phase-locked loop with quadrature outputs. A directconversion sub-harmonic mixer plays the role of a E-band demodulator. The proposed technique can be used in various high baud rate communication applications, saving on the computing power of the digital process.

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“…To mitigate the influence of a strong carrier at the mixer's input, a dc cancellation circuit can be incorporated at the output stage of the mixer [25], reducing the influence of

LL S_{FE}

on the EVM. Alternatively, an adjustable phase shifter at the input of the front‐end can facilitate the mitigation of the output dc offset [14].…”

Section: Discussionmentioning

confidence: 99%

Section: System Studymentioning

confidence: 99%

Feasibility study of the feed‐forward carrier recovery technique for E‐band integrated receivers

Dyskin

Kallfass

2019

IET Circuits, Devices & Systems

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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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Toward Ultra-Power-Efficient, Tbps Wireless Systems via Analogue Processing: Existing Approaches, Challenges and Way Forward

Kiasaraei,

Nikitopoulos,

Tafazolli

2024

IEEE Commun. Surv. Tutorials

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Analog Carrier Recovery for Broadband Wireless Communication Links

Cited by 6 publications

References 12 publications

Feasibility study of the feed‐forward carrier recovery technique for E‐band integrated receivers

Feasibility study of the feed‐forward carrier recovery technique for E‐band integrated receivers

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

Toward Ultra-Power-Efficient, Tbps Wireless Systems via Analogue Processing: Existing Approaches, Challenges and Way Forward

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