Photonics-Based Microwave Image-Reject Mixer

Zhu, Dan; Pan, Shilong

doi:10.3390/photonics5020006

Cited by 40 publications

(5 citation statements)

References 61 publications

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“…The undesired signal in the IF spectrum is referred to as an image and causes distortion. The process of suppressing the image signal in the IF spectrum is referred to as image rejection [139], and is depicted in Fig. 15 (d).…”

Section: F Brillouin Frequency Convertersmentioning

confidence: 99%

Chip-Based Brillouin Processing for Microwave Photonic Phased Array Antennas

Garrett

Merklein

Eggleton

2023

IEEE J. Select. Topics Quantum Electron.

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In this review paper, we provide perspectives on the implementation of high-performance, wideband, chip-based Brillouin microwave photonic processing subsystems for use in phased array antennas that require processing at every antenna element. We review recent advances in chip-scale Brillouin microwave photonic signal processing systems, including reconfigurable filters, frequency converters, tunable phase shifters, true time delays and microwave sources, which are key functionalities for phased array antennas. We discuss a roadmap for developments of Brillouin-based microwave photonic processors to reach the required performance and compact footprint for implementation in future dynamically reconfigurable phased array antenna systems.

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Section: F Brillouin Frequency Convertersmentioning

confidence: 99%

Chip-Based Brillouin Processing for Microwave Photonic Phased Array Antennas

Garrett

Merklein

Eggleton

2023

IEEE J. Select. Topics Quantum Electron.

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“…Furthermore, in recent years, as interest in photonics for wideband RF systems has grown, numerous designs have been proposed for photonic imagerejection mixers. An overview can be found in the review article of Zhu and Pan [57]. We have developed solutions that are specifically tailored to this receiver architecture, which are beyond the scope of this paper; further details can be found in [58].…”

Section: Down-conversionmentioning

confidence: 99%

Fourier-Optics Based Opto-Electronic Architectures for Simultaneous Multi-Band, Multi-Beam, and Wideband Transmit and Receive Phased Arrays

Prather

Galli²,

Schneider

et al. 2023

IEEE Access

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Current trends in wireless communications require a Base Transceiver Station (BTS) to support an ever-increasing number of antennas, wider bandwidths, multiple frequency bands, and many simultaneous beams. This is a tall order when considering all-electronic implementations, especially when operating at high carrier frequencies. We describe here Fourier-optics based opto-electronic architectures that include analog and fully connected transmit (TX) and receive (RX) implementations that support simultaneous multiband, multi-beam phased arrays where optical up-and down-conversion are used to generate IF/RF and RF/IF, respectively, signals for simultaneous multi-user and multi-beam transmission and reception over a wide range of frequencies. The proposed lens-based architectures have the ability to transmit and receive multiple distinct beams simultaneously even when only analog beamforming is performed, thus greatly simplifying the tasks of cell search and initial access without having to resort to complex matrix-based beamforming networks. Additionally, lens-based TX and RX beamforming is performed in the analog optical domain with zero power consumption and negligible latency bounded only by the time the light takes to travel through the lens. Photonic signal processing also reduces the number of RF components required at the remote radio unit (RRU) and the number of costly and power-hungry high-performance analog-to-digital/digital-toanalog converters (ADCs/DACs) required. The optical subsystems are ultra-wideband and frequency agnostic as only the front-end components (antennas, amplifiers) are RF frequency/band specific. Therefore, a single photonic system design may be operated at any band and, furthermore, existing installations may be modified/upgraded to operate in different bands with minimal component replacements needed. Finally, the presented architectures provide near unlimited beam-bandwidth product (BBP) with minimal power requirements and no external cooling. Theoretical analysis and experimental confirmation of the proposed architecture will both be reported, including a receiver with a nominal BBP of 36 GHz with a prototype system that consumed less than 300 W, thus yielding a power efficiency of beam formation of 8 W/GHz, which is more than a 6× improvement over the current state of the art.INDEX TERMS beamforming, microwave photonics, optical coherent detection, radio-over-fiber, wireless communications, beam bandwidth product.

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“…to simplify the expression and substituting Equation (10) into Equation ( 8), the output can be obtained as:…”

Section: Mzmx1mentioning

confidence: 99%

“…Therefore, photonic-enabled in-band full-duplex frequency down-conversion systems have gained great attention in RF transceivers for wireless communication systems, radar frontends and satellite payloads [9]. However, an urgent problem to be solved in the IBFD frequency down-conversion system is the disturbance of in-band interference containing unwanted image interference and self-interference [10,11]. Image interference and self-interference (SI) will inevitably be captured by the antennas of RF transceivers.…”

Section: Introductionmentioning

confidence: 99%

Photonic-Enabled Image Rejection Mixer with Simultaneous Wideband Self-Interference Cancellation for In-Band Full-Duplex System

Zhu

Gao

et al. 2023

Photonics

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In this paper, a photonic-enabled image rejection mixer (IRM) that features an ultrawideband self-interference cancellation (SIC) function and a compact configuration is proposed. The parameter tuning of SIC is realized in an optical domain, which avoids the use of electrically tuned devices with limited bandwidth and precision, so that high-precision parameter matching can be realized in the optical domain to realize deep and ultrawideband SIC. The key point of image rejection (IR) is to construct a pair of orthogonal local oscillation (LO) signals through DC-bias-induced phase shift. This not only avoids a high-frequency electrical 90-degree hybrid coupler (HC) applied in the traditional Hartley structure, but also compensates the phase deviation in the electrical intermediate frequency (IF) 90-degree HC flexibly, ensuring wideband and deep IR operation. The simulation results show that the proposed IRM can achieve ultrawideband SIC and IR with the simultaneous high-efficiency recovery of useful signals. They also verify that the scheme has good resistance to strong interference, and can cope with the phase imbalance of the IF 90-degree electrical HC, ensuring the good performance of the system, which has a wide application prospect in various in-band full-duplex (IBFD) systems.

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Photonics-Based Microwave Image-Reject Mixer

Cited by 40 publications

References 61 publications

Chip-Based Brillouin Processing for Microwave Photonic Phased Array Antennas

Chip-Based Brillouin Processing for Microwave Photonic Phased Array Antennas

Fourier-Optics Based Opto-Electronic Architectures for Simultaneous Multi-Band, Multi-Beam, and Wideband Transmit and Receive Phased Arrays

Photonic-Enabled Image Rejection Mixer with Simultaneous Wideband Self-Interference Cancellation for In-Band Full-Duplex System

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