An Array of Leaky Wave Antennas for Indoor Smart Wireless Access Point Applications

Gil-Martínez, Alejandro; Gholb, Youssef El; Poveda-García, Miguel; Gómez‐Tornero, José Luis; Idrissi, Najiba El Amrani El

doi:10.1109/wincom47513.2019.8942574

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…Formed by cascading multiple unit cells, they can theoretically radiate from backfire, to endfire if the open stopband is properly resolved [16]. Although implementations of LWAs in wireless communications systems at microwave [17], millimeter wave [18], [19], and terahertz frequencies [20], [21] have been investigated, further developments are needed to motivate their use in an industrial context. For example, PLWAs can be integrated into joint radarcommunication systems [22] where their inherent spatialspectral mapping ability enables multiple-user communications and accurate user localization [23].…”

Section: Introductionmentioning

confidence: 99%

A Broadband Bidirectional Circularly Polarized Phase-Inverter-Based Periodic Leaky-Wave Antenna With Same Handedness

Jeanty,

Chen

2023

IEEE Access

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A bidirectional circularly polarized (CP) double asymmetric periodic leaky-wave antenna (PLWA) with wide 3-dB axial ratio (AR) bandwidth is presented. It is the first single-layer bidirectional CP PLWA with the same handedness in both half-spaces being reported. It consists of cascaded all-pass phase inverters hosted by a double-sided parallel stripline. A simplified unit cell facilitating theoretical analysis is first investigated, and both design rules and a radiation model for CP radiation are deduced. In particular, the phase quadrature and its weak dependence on the zenith angle, the origin of the same handedness in both half-spaces, are justified. Then, a practical unit cell design, suitable for PCB fabrication, is proposed, and a 30-cell PLWA prototype for the sub-6-GHz band is designed and fabricated, which exhibits a 10-dB return loss bandwidth from 4.5 to 7.0 GHz. Although the transitions feeding the antenna and the fabrication imperfections perturb the radiation, mainly in the upper half-space, the prototype matches the simulations from 4.6 to 6.9 GHz, corresponding to scanning from +45 to 34 in the lower half-space. The measured realized gain ranges from 4.4 to 6.6 dBic in the operating band. Meanwhile, the axial ratio of the scanning beam remains below 3 dB throughout the 40% bandwidth.INDEX TERMS Circular polarization, double-sided parallel striplines, leaky-wave antenna, phase inverters, the same handedness.

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Section: Introductionmentioning

confidence: 99%

A Broadband Bidirectional Circularly Polarized Phase-Inverter-Based Periodic Leaky-Wave Antenna With Same Handedness

Jeanty,

Chen

2023

IEEE Access

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“…WLAN systems use base stations or access points to deliver connectivity to wireless devices [18,19]. In [20], the authors present a design of a leaky-wave antenna (LWA) array capable of generating six simultaneouslyscanned directive beams when connected to a MU MIMO 802.11ax base station Router WiFi for indoor smart wireless access point applications. In [21], the authors proposed a new full-rate coding scheme for MIMO-OFDM systems operating over slow-fading wireless channels.…”

Section: Introductionmentioning

confidence: 99%

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Khan

Ullah

et al. 2022

Applied Sciences

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The proposed work describes a corner square-cut square-patch multiple-input multiple-output (MIMO) antenna with reduced mutual coupling for circular polarization (CP). A two-port MIMO-CP antenna was designed and operated at 5.6 GHz for wireless local area network (WLAN) applications. The dimensions of the MIMO-CP antenna were 22.5×50mm2(0.43λ0×0.933λ0) and the FR4 substrate height was 1.6 mm. Between the two-elements, the edge-to-edge distance was 12.2 mm (0.227 λ0), where λ0 was the free space wavelength at 5.6 GHz. A slot was created in the middle of the ground in the proposed MIMO antenna to reduce mutual coupling and improve CP. The ground slot improves impedance matching and provides a better S-parameter and axial ratio (AR), according to the antenna results. According to the simulated results, the proposed antenna bandwidth of 5.23–6.42 GHz (21.4%) for S11 were <−10 dB, isolation was −37 dB with a peak gain of 6 dB and AR ≤3 dB from 5.37 to 5.72 GHz (6.25%). The proposed antennas are simple to fabricate, have low profiles, are inexpensive, have good isolation, and are CP. The diversity gain (DG) and envelop correlation coefficient (ECC) results are better in the simulated frequency band. A MIMO-CP antenna geometry prototype is built and measured for comparison, yielding good results when compared to the simulated and measured results. The MIMO-CP antenna, as designed, is suitable for WLAN applications.

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Smart Leaky‐Wave Antennas for IridescentIoTWireless Networks

Gómez‐Tornero

2022

Antenna and Array Technologies for Future Wireless Ecosystems

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An Array of Leaky Wave Antennas for Indoor Smart Wireless Access Point Applications

Cited by 4 publications

References 4 publications

A Broadband Bidirectional Circularly Polarized Phase-Inverter-Based Periodic Leaky-Wave Antenna With Same Handedness

A Broadband Bidirectional Circularly Polarized Phase-Inverter-Based Periodic Leaky-Wave Antenna With Same Handedness

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Smart Leaky‐Wave Antennas for IridescentIoTWireless Networks

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