Periodic High-Sensitive Beam-Steering Leaky-Wave Antenna With Circular Polarization

Hammes, Christian; Diewald, Andreas R.

doi:10.1109/tap.2019.2948407

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…Also, the polarization of the antenna was linear and the OSB was not eliminated. The realized gain and the scan range in the present CP MLWA seems to be larger than those reported in most previous works [9,[23][24][25].…”

Section: Measurements and Discussioncontrasting

confidence: 68%

Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

Barzegari

Forooraghi

Arand

2021

IET Microwaves Antenna & Prop

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In the present study, a characteristic mode analysis (CMA) is proposed for the first time to design a periodic leaky‐wave antenna (LWA). By applying CMA to the unit cell of a periodic travelling wave structure, the open stopband is suppressed and circular polarization (CP) radiation is achieved. Also, some parametric studies are added to clarify the design processes. Eventually, to optimize the design, the series and shunt analysis is applied to the unit cell of the periodic travelling wave structure. Based on the proposed analysis, a wideband CP long microstrip LWA (MLWA) is designed and simulated. The MLWA can sweep the main beam from around −30° to +10° continuously through broadside by sweeping the frequency from 7.5 to 12.25 GHz. The proposed structure is designed to have CP in the entire operating frequency. Eventually, the fabricated antenna showed excellent agreement between measured, modelled, and simulated results.

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Section: Measurements and Discussioncontrasting

confidence: 68%

Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

Barzegari

Forooraghi

Arand

2021

IET Microwaves Antenna & Prop

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“…On another hand, a longitudinal slot‐array SIW‐LWA achieved a 90° scanning range with a scanning sensitivity of 16°/GHz and large size 31 . Besides, Hammes and Diewald 36 presented a periodic LWA with a 22° scanning range with a scanning sensitivity of 11°/GHz. Zheng et al 37 presented a slotted SIW‐LWA for millimeter‐wave applications with a 26° scanning range and a 6.5°/GHz scanning sensitivity.…”

Section: Measurement Analysismentioning

confidence: 99%

A new leaky wave antenna using wire‐loaded metagratings: The theoretical analysis and implementation

Soad

Sun²,

et al. 2022

Int J Communication

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Summary A new leaky wave antenna (LWA) based on wire‐loaded metagratings (MGs) is proposed, with the capability of successfully employing MGs for leaky modes. Periodic capacitive‐wired and inductive‐wired MGs are located on a dielectric substrate in the LWA framework and backed by a perfect electric conductor (PEC) layer. These MGs are partial radial surfaces to radiate energy using equivalent surface impedance with a local value of the complex wavenumber. A theoretical analysis has created a model for the equivalent electromagnetic fields produced via loaded‐wire MGs and generated the Z‐matrix and S‐matrix for a two‐port structure from the electromagnetic fields. As a result, a beam‐scanning range of 53° for the operating bandwidth of 9.9–11.9 GHz is achieved with a scanning sensitivity of 26.5°/GHz. Meanwhile, the realized gain is obtained up to 12.9 dB. The measurement and simulation results indicated that the MGs LWA was consistent. The proposed antenna performed admirably in beam‐steering communication systems.

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“…5G millimeter-wave bands use frequency bands in the 24-100 GHz range [8][9][10][11][12], which can support many devices [13][14][15][16] and demonstrate the performance of outlining 5G service requirements [17,18]. Leaky-wave antennas (LWAs) are highly promising directional antennas for millimeter and submillimeter waves [19][20][21] because they can achieve higher directive radiation [22][23][24] with single or multiple feedings [25,26], resulting in a compact structure [27] with low energy consumption [28,29]. Numerous studies have discussed the functionality of resonant cavities by using the LWA principle [30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

A Promising Ka Band Leaky-Wave Antenna Based on a Periodic Structure of Non-Identical Irregularities

Shaaban

Ali

Yasseen

et al. 2022

Preprint

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This paper presents a new periodic grooved dielectric leaky-wave antenna (LWA) with non-identical irregularities for an extremely high-frequency (EHF) range capable of performing efficiently in the Ka band through a stable gain, a decrease in the level of the side lobes, and the achievement of a narrower main lobe beam. It consists of a dielectric waveguide antenna placed inside a channeled rectangular metallic waveguide to improve performance. A dielectric rod was used to overcome the losses related to the propagation of electromagnetic waves in metal conductors. A grooved dielectric of a 21-element linear array is used to propose a simple approach for the synthesis of such antennas based on a modified energy method and is fed by a standard waveguide. It was designed and simulated at 37.2 GHz for satellite, 5G antennas, and radar applications. The major novelty of this study is the ability to control the direction of the main lobe through non-identical irregularities in geometric parameters, such as the width, height, and distance between each element. Radiation techniques have been studied extensively using simulations. A performance antenna with radiation efficiency 99.35%, gain 22 dBi, width of radiation pattern 3.2 ◦ , and side lobe level (SLL) -18.3 dB has been achieved.

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Periodic High-Sensitive Beam-Steering Leaky-Wave Antenna With Circular Polarization

Cited by 14 publications

References 6 publications

Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

Design of circularly polarized planar leaky‐wave antenna using characteristic mode analysis

A new leaky wave antenna using wire‐loaded metagratings: The theoretical analysis and implementation

A Promising Ka Band Leaky-Wave Antenna Based on a Periodic Structure of Non-Identical Irregularities

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