Frequency diverse phase-conjugating retrodirective array with simultaneous range-focusing capability for multi-targets

Yao, A-Min; Fang, Da‐Gang

doi:10.1109/apmc.2015.7413417

Cited by 10 publications

(13 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in (14), it can be observed that both continuouswave/narrowband FDA and UWB pulse FDA create anglerange-dependent beampattern. This attribute offers potential applications in mm-wave communications.…”

Section: 2mentioning

confidence: 96%

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

Nusenu

2019

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

With the massive growth of wireless data in mobile broadband communications, millimeter-wave (mm-wave) communication is an alternative enabling technique for fifth generation (5G) wireless communication systems. More importantly, mm-wave offers large frequency spectrum bands ranging from 30GHz to 300GHz that can be utilized to provide very high capacity (i.e., multigigabits per-second data rates). Moreover, because of the small wavelength at mm-wave frequencies, we can exploit large antenna elements in a small physical area, meaning beamforming schemes are feasible. Nevertheless, high directional antennas should be used due to overcoming the severe path loss and absorption in mm-wave frequencies. Further, the antennas should be steerable in angle and range directions to support point-to-point (multipoint) communications. So far, mm-wave communication has utilized phased-array antennas arrangement which is solely angle dependent. This review paper presents recent array technology, namely, frequency modulated frequency diverse array (FDA) for mm-wave communication applications with an emphasis on beamforming. In FDA, small frequency increment is added across the elements. In doing so, an array beam is generated which is angle-range-time dependent without the need of phase shifters. This feature has several promising potentials in mm-wave communications. In this review, the object is to bring to the fore this advance FDA technology to mm-wave communications community to call for more investigations. We review FDA research progress up to date and highlight the potential applications in mm-wave communications.

show abstract

Section: 2mentioning

confidence: 96%

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

Nusenu

2019

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…Furthermore, in order to decouple the range and angle in the FDA array factor for better target detection and tracking performance, we can adopt the frequency diverse phase-conjugating retrodirective array (FD-PCA) [163], which was proposed to cope with the disadvantage of conventional phased-array based retrodirective technique which achieves only angle-focusing without range focusing [164]. As shown in Fig.…”

Section: Application Of Fda In Cognitive Radarmentioning

confidence: 99%

“…The signals received by the nth element are mixed with the LO signal whose frequency is 2 f 0 + ∆ f n , where ∆ f n ≪ f 0 is the corresponding frequency offset. The overall retransmitted signal observed by an arbitrary point (r, θ) is expressed as [163] s(t; r, θ) =e…”

Section: Application Of Fda In Cognitive Radarmentioning

confidence: 99%

“…Interpolation, extrapolation, and pulse stitching techniques can also be applied to contend with operations in a dense electromagnetic environment with interferences. The FD-PCA [163] with range-focusing capability for multiple targets may find important applications such as interference suppression, wireless power transmission and security communications. Certainly, there is still some work to be done such as the practical implementation, the non-uniform amplitude weighting, the possibility for realizing a time-invariant spatial focusing beampattern.…”

Section: A Joint Optimization In Waveform Design and Transmit Beamfomentioning

confidence: 99%

See 1 more Smart Citation

An Overview on Time/Frequency Modulated Array Processing

Wang

Farina³

2017

IEEE J. Sel. Top. Signal Process.

197

View full text Add to dashboard Cite

Time and frequency modulated arrays have numerous application areas including radar, navigation and communications. Specifically, a time modulated array can create a beampattern with low sidelobes via connecting and disconnecting the antenna elements from the feed network, while the frequency modulated frequency diverse array produces a range-dependent pattern. In this paper, we aim to introduce these advanced arrays to the signal processing community so that more investigations in terms of theory, methods and applications, can be facilitated. The research progress of time/frequency modulated array studies is reviewed and the most recent advances are discussed. Moreover, potential applications in radar and communications are presented, along with their technical challenges, especially in signal processing aspects.Index Terms-Time modulated array, frequency modulated array, frequency diverse array, array signal processing, phasedarray, range-dependent beamforming, multiple-input multipleoutput (MIMO) radar.

show abstract

“…As another example, the combination of frequency diversity and phase conjugation was proposed to form a frequency diverse phase-conjugating antenna array as shown in Fig. 6 [29]. In this array, with a pilot signal the received signal at each element is mixed with an individual LO signal which frequency is twice the RF frequency plus a small frequency offset.…”

Section: Iv! From a Perspective Of Hybrid Processing In Time Domain mentioning

confidence: 99%

A general look on time-modulated antenna array

Yao

Fang

2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

View full text Add to dashboard Cite

From the perspective of diversity, spectrum utilization, and the hybrid processing in time domain and in frequency domain, this paper takes a general look and new perspectives on time-modulated antenna array. Some novel ideas, such as the synthesis of 4-D beampattern through 4-D source and the combination of retrodirective technique and the optimization of time-modulated frequency offset, are presented and discussed that may result in the further developments on such array. Finally, the full-wave analysis of the instantaneous and average behaviors on time-modulated antenna arrays is briefly introduced. Index Terms-Time-modulated antenna array, frequency diversity, pattern diversity, synthesis of 4-D beampattern singlesideband modulation, retrodirective antenna array, full-wave analysis.

show abstract

Frequency diverse phase-conjugating retrodirective array with simultaneous range-focusing capability for multi-targets

Cited by 10 publications

References 9 publications

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

An Overview on Time/Frequency Modulated Array Processing

A general look on time-modulated antenna array

Contact Info

Product

Resources

About