A Concurrently Dual-Polarized, Simultaneous Transmit and Receive (STAR) Antenna

Nikkhah, Mohammad Ranjbar; Wu, Jie; Luyen, Hung; Behdad, Nader

doi:10.1109/tap.2020.2986856

Cited by 33 publications

(14 citation statements)

References 26 publications

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“…Compared to [13], where double substrate topology is used, the proposed design offers higher isolation with a simple single substrate design. Moreover, the antennas in [19], [22], and [24] suffer poor isolation performances. The antennas in [5] and [23] have high isolation but with a reduced low gain.…”

Section: B Comparison With the Literaturementioning

confidence: 99%

“…Various techniques exist to improve the isolation between the TX and the Rx antennas [10]- [27]. Generally, these methods are divided into several main categories, such as physical separation between Tx and Rx apertures [9], [10], utilizing polarization mul-tiplexing [11]- [14], employing near-field cancellation [15]- [18], and implementing circulators [19]- [21]. Finally, the decoupling technique suppresses the self-interference caused by the electromagnetic coupling between the Tx and Rx antennas [22]- [27].…”

Section: Introductionmentioning

confidence: 99%

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MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

et al. 2023

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A novel high-isolation dual-polarized in-band full-duplex (IBFD) dielectric resonator antenna (DRA) for satellite communications using a decoupling structure is proposed. Good isolation between transmit and receive ports is achieved by placing two identical linearly polarized resonators orthogonal to each other. Each resonator consists of a main rectangular dielectric resonator of the dielectric constant of 10 and is loaded by a thin dielectric slab of lower permittivity of 5 to broaden the matching bandwidth further. The isolation is further improved by loading an absorber and etching several slots in the ground plane. Finally, the proposed DRA is fabricated and measured to validate the concepts. Measurement results show high isolation of more than 50 dB over the desired operating bandwidth from 23.04 GHz to 24.08 GHz (ka-band) with a peak gain of about 8.93 dBi and 8.09 dBi for Port 1 and Port 2, respectively. In addition, the proposed IBFD DRA provides 11.87 GHz and 4.84 GHz isolation bandwidths over 25 dB and 30 dB, respectively, making it a potential candidate for mm-wave terrestrial applications.INDEX TERMS Dielectric resonator antenna, dual-polarization, in-band full-duplex.

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Section: B Comparison With the Literaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

et al. 2023

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“…where 5 This assumption of a knowledgeable EV constitutes the worst-case scenario. We adopted this assumption along with concurrent FD spoofingestimation capabilities of the EV to ultimately quantify how much worse the EV can degrade the legitimate communication.…”

Section: B Ev Achievable Ratementioning

confidence: 99%

“…The STAR implementation relies on either a concentric-antenna configuration based on cross polarization antenna isolation[5]-[7] or a singleantenna configuration based on multiple-port circulator for isolating transmit and receive signals[8]-[11].…”

mentioning

confidence: 99%

Concurrent Spoofing-Jamming Attack in Massive MIMO Systems With a Full-Duplex Multi-Antenna Eavesdropper

Alageli

Ikhlef

Chambers

2023

IEEE Trans. Veh. Technol.

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In this paper, we evaluate the ultimate severity of a concurrent spoofing-jamming un-detected attack from a fullduplex (FD) multi-antenna eavesdropper (EV) on a legitimate user equipment (UE) in a massive multiple-input multipleoutput (MIMO) system. The FD EV can concurrently exploit its antennas to spoof one UE pilot and to estimate its link to the same UE in the uplink, and then to eavesdrop the UE's data and perform directional jamming in the downlink. From the perspective of the EV, we derive an expression for the ergodic rate difference, which is general for any possible overlap between spoofing and jamming antenna subsets. Residual spoofing and jamming self-interferences and their statistical dependencies are accounted for in the derived expression. The EV optimizes the trade-off between both spoofing-jamming powers, and antenna subsets to minimize the ergodic rate difference. Numerical results show that the EV is capable of destroying the security of the legitimate communication with a small number of antennas and a power budget equal to that of the attacked UE. The severity of the attack depends on the EV's knowledge of the power allocation strategies used at the base station (BS).

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“…Several techniques have been introduced to enhance the isolation in the full-duplex antenna, such as antenna elements spatial separation 5 , near-field cancellation 6 , 7 , characteristic modes 8 , 9 , and using circulators 10 , 11 . In addition, based on orthogonal-polarization approaches, different polarizations for Rx and Tx antennas are utilized to improve the inter-port isolation 6 , 12 – 18 .…”

Section: Introductionmentioning

confidence: 99%

High isolation circularly polarized in-band full-duplex anisotropic dielectric resonator antenna

Abedian

Khalily

Wang

et al. 2023

Sci Rep

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A novel high-isolation, monostatic, circularly polarized (CP) simultaneous transmit and receive (STAR) anisotropic dielectric resonator antenna (DRA) is presented. The Proposed antenna is composed of two identical but orthogonally positioned annular sectoral anisotropic dielectric resonators. Each circularly polarized (CP) resonator consists of alternating stacked dielectric layers of relative permittivities of 2 and 15 and is excited by a coaxial probe from the two opposite ends to have left and right-hand CP. Proper element spacing and a square absorber are placed between the resonators to maximize Tx/Rx isolation. Such a structure provides an in-band full-duplex (IBFD) CP-DRA system. Measurement results exhibit high Tx/Rx isolation better than 50 dB over the desired operating bandwidth (5.87–5.97 GHz) with a peak gain of 5.49 and 5.08 dBic for Ports 1 and 2, respectively.

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A Concurrently Dual-Polarized, Simultaneous Transmit and Receive (STAR) Antenna

Cited by 33 publications

References 26 publications

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

Concurrent Spoofing-Jamming Attack in Massive MIMO Systems With a Full-Duplex Multi-Antenna Eavesdropper

High isolation circularly polarized in-band full-duplex anisotropic dielectric resonator antenna

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