Millimeter-Wave Endfire Wide-Angle Scanning Circularly Polarized Antenna Array

Yang, Yong; Ban, Yong‐Ling; LiSun, XiaofeiQiang; Sim, Chow‐Yen‐Desmond

doi:10.1109/lawp.2022.3184391

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…Compared with linear polarization, the CP phased array has the advantages of anti-polarization interference, anti-multipath fading, and immunizing Faraday rotation, which makes it widely used in satellite communication systems [4]. Therefore, the investigation of CP phased arrays with wide-angle scanning capability in MMW is of great significance [12].…”

Section: Introductionmentioning

confidence: 99%

Ka-Band Wide-Angle Scanning Phased Array with Dual Circular Polarization

Zhang,

Yin

2024

Electronics

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A wide-angle scanning phased array with dual circular polarization in the Ka-band is presented in this paper. To improve the scanning capability of the phased array, the microstrip element is modified by loading many metal posts at its center and periphery. In addition, a stripline coupler is designed to achieve dual circularly polarized (CP) radiation, and the inner conductor of the subminiature micro-push-on (SSMP) connectors for feeding the coupler is extended to the top layer of the multilayer element by introducing an open stub, which simplifies the assembly process between the SSMP connector and multilayer printed circuit board (PCB) due to through-hole soldering instead of blind-hole soldering. The proposed element can cover a frequency range from 28 GHz to 30.5 GHz with a relative bandwidth of 8.5% in the Ka-band. An 8 × 8 phased array is constructed based on this proposed element, and a wide-angle scanning range from −65° to +65° is obtained for the dual circular polarization. The proposed array has a gain fluctuation of 5.1 dB and an axial ratio (AR) of less than 3.3 dB during beam-steering. The prototype is fabricated and measured, with a good agreement between the measured and simulated results. The proposed phased array can be applied in a Ka-band millimeter-wave (MMW) communication system.

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Section: Introductionmentioning

confidence: 99%

Ka-Band Wide-Angle Scanning Phased Array with Dual Circular Polarization

Zhang,

Yin

2024

Electronics

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“…Besides the AR bandwidth, gain, manufacturing process, and cost, there are other considerations, including antenna structures [27]- [30], application scenarios [31], multibeam arrays [32], [33], reconfigurable characteristics [34], dual-CP [35]- [37], and bidirectional radiation [38], [39], etc. A nonplanar helix antenna was investigated in [28] which radiates an end-fire CP wave and obtains an AR bandwidth of up to 46%.…”

Section: Introductionmentioning

confidence: 99%

“…A nonplanar helix antenna was investigated in [28] which radiates an end-fire CP wave and obtains an AR bandwidth of up to 46%. A CP quasi-Yagi antenna was proposed in [33] for achieving a multibeam scanning function. This antenna configuration includes one driven element and two parasitic elements, enabling a scanning angle of up to 60 • .…”

Section: Introductionmentioning

confidence: 99%

Millimeter Wave Planar Wideband Circularly Polarized Antenna Loaded Triangular Patch for End-Fire Radiation

Xu,

Sima,

Wei

et al. 2023

IEEE Access

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A planar wideband circularly polarized (CP) end-fire antenna is presented for millimeter-wave (mm-wave) applications. First, the antenna consists of an open-ended substrate integrated waveguide (SIW) feeding line in the middle, a pair of stacked substrates with shorted triangular patches on both upper and lower sides, and an offset parallel strip. The shorted triangular patch is viewed as a horizontally polarized electric dipole, while the open-ended SIW is equivalent to an enhanced magnetic dipole due to the stacked substrates. Wide axial ratio (AR) performance is achieved by simultaneously exciting the two dipoles with orthogonal phase supplied by the offset parallel strip. Then, working principle and parameter analysis are explained and discussed for a further understanding. Finally, a prototype is fabricated and measured to verify the design scheme, which demonstrates wideband impedance bandwidth and AR bandwidth performance, novel and efficient radiating structure, simple and small antenna size. This indicates that the proposed antenna is a promising candidate to design wideband end-fire CP antenna in the mm-wave frequency band.INDEX TERMS Circularly polarized, end-fire antenna, millimeter wave, triangular patch.

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“…Due to the unique advantage of endfire radiation, endfire antennas/antenna arrays have been widely used in 5G terminal [6][7][8][9][10][11][12][13] and millimeter-wave applications [14][15][16][17][18][19][20][21]. Yagi-Uda antenna, known as the most famous endfire antenna and commercial structure, is composed of one driven element, one reflector, and several directors [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

A Printed Dipole Array with Bidirectional Endfire Radiation for Tunnel Communication

Xu,

et al. 2023

Sensors

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Tunnel communication always suffers from path loss and multipath effects caused by surrounding walls. Meanwhile, the traditional leaky coaxial cables are expensive to deploy, inconvenient to operate, and difficult to maintain, leading to many problems in practical use. To solve the abovementioned problems, a low-profile printed dipole array operating at 3.5 GHz with bidirectional endfire radiation is designed based on the method of maximum power transmission efficiency (MMPTE). By setting two virtual test receiving dipoles at the two opposite endfire directions and then maximizing the power transmission efficiency between the printed dipole array to be designed and the test receiving antennas, the optimal amplitudes and phases for the array elements are obtained. Based on the optimal distributions of excitations, the simulation results show that the proposed eight-element printed dipole array can simultaneously generate two mirrored endfire beams towards opposite directions. Furthermore, the corresponding normalized cross-polarization levels are lower than −22.3 dBi both in the azimuth and elevation planes. The peak endfire gain is 10.7 dBi with maintenance of higher than 10 dBi from 3.23 GHz to 3.66 GHz, which is suitable for tunnel communication.

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Millimeter-Wave Endfire Wide-Angle Scanning Circularly Polarized Antenna Array

Cited by 7 publications

References 36 publications

Ka-Band Wide-Angle Scanning Phased Array with Dual Circular Polarization

Ka-Band Wide-Angle Scanning Phased Array with Dual Circular Polarization

Millimeter Wave Planar Wideband Circularly Polarized Antenna Loaded Triangular Patch for End-Fire Radiation

A Printed Dipole Array with Bidirectional Endfire Radiation for Tunnel Communication

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