Abstract:A shorted magneto electric dipole with orthogonal dual polarization is designed for modern wireless communications. The proposed antenna is a wideband dual-polarized antenna consisting of magneto electric dipoles, which are fed by novel hook-shaped strip feeds. The antenna proposed in this paper is simulated using EM simulation software called high-frequency structure simulator. The simulated and measured results are presented. This antenna achieves 45.4% of impedance bandwidth of −10 dB RL for frequency range… Show more
“…The proposed antenna-operating spectrum can be highly usable for most wireless communication systems like Wi-Fi/WLAN/Sub-6 GHz/Wi-Max/LTE and can be utilized for BTS, small satellite applications. 14,[26][27][28][29][30][31][32][33][34][35][36]…”
Section: Experimental Validationsmentioning
confidence: 99%
“…Unlike other ME dipole structures, the proposed geometry leverages in design simplicity without ground plane shorting and also offers wide impedance bandwidth of 82.35%. The proposed antenna‐operating spectrum can be highly usable for most wireless communication systems like Wi‐Fi/WLAN/Sub‐6 GHz/Wi‐Max/LTE and can be utilized for BTS, small satellite applications 14,26–36 …”
Section: Experimental Validationsmentioning
confidence: 99%
“…In Reference 13, a wideband dual‐polarized ME dipole antenna was designed, with a loaded disk for gain improvement. In Reference 14, a wideband dual‐slant polarized ME dipole antenna was designed for mobile applications with good antenna gain performance. The reported literatures provides an excellent ME dipole design framework with good performance attributes.…”
A compact magneto-electric (ME) dipole antenna has been designed to improve bandwidth and gain. The E-dipole and M-dipole elements have separate resonance modes, that is, the E-dipole operates from (4.5 to 5.15 GHz, and 5.36 to 6.4 GHz) and the M-dipole operates from (4.25 to 5.2 GHz). A ME dipole structure is generated when the (E + H) dipole structures are combined. For successful ME coupling, the E-dipole lengths are enlarged at the top and bottom, while truncated in the center. This configuration combines a wide impedance bandwidth with a high broadside radiation gain in a small package. The ME dipole element has a bandwidth of 42.44% from (3.1 to 3.6 GHz, and 4.7 to 6.2 GHz) and gain of 7.1 dBi when the isolated resonant modes of E-and M-dipoles are efficiently induced. To improve overall antenna performance, a metallic reflector is loaded at a height of H air = 8 mm, resulting in an increase in bandwidth of 82.35% from (2.5 to 6.0 GHz) and a gain improvement of 10.2 dBi. A constructed prototype antenna has been tested and found to be in good agreement with simulated results, to be potentially explored in wireless communication systems.
“…The proposed antenna-operating spectrum can be highly usable for most wireless communication systems like Wi-Fi/WLAN/Sub-6 GHz/Wi-Max/LTE and can be utilized for BTS, small satellite applications. 14,[26][27][28][29][30][31][32][33][34][35][36]…”
Section: Experimental Validationsmentioning
confidence: 99%
“…Unlike other ME dipole structures, the proposed geometry leverages in design simplicity without ground plane shorting and also offers wide impedance bandwidth of 82.35%. The proposed antenna‐operating spectrum can be highly usable for most wireless communication systems like Wi‐Fi/WLAN/Sub‐6 GHz/Wi‐Max/LTE and can be utilized for BTS, small satellite applications 14,26–36 …”
Section: Experimental Validationsmentioning
confidence: 99%
“…In Reference 13, a wideband dual‐polarized ME dipole antenna was designed, with a loaded disk for gain improvement. In Reference 14, a wideband dual‐slant polarized ME dipole antenna was designed for mobile applications with good antenna gain performance. The reported literatures provides an excellent ME dipole design framework with good performance attributes.…”
A compact magneto-electric (ME) dipole antenna has been designed to improve bandwidth and gain. The E-dipole and M-dipole elements have separate resonance modes, that is, the E-dipole operates from (4.5 to 5.15 GHz, and 5.36 to 6.4 GHz) and the M-dipole operates from (4.25 to 5.2 GHz). A ME dipole structure is generated when the (E + H) dipole structures are combined. For successful ME coupling, the E-dipole lengths are enlarged at the top and bottom, while truncated in the center. This configuration combines a wide impedance bandwidth with a high broadside radiation gain in a small package. The ME dipole element has a bandwidth of 42.44% from (3.1 to 3.6 GHz, and 4.7 to 6.2 GHz) and gain of 7.1 dBi when the isolated resonant modes of E-and M-dipoles are efficiently induced. To improve overall antenna performance, a metallic reflector is loaded at a height of H air = 8 mm, resulting in an increase in bandwidth of 82.35% from (2.5 to 6.0 GHz) and a gain improvement of 10.2 dBi. A constructed prototype antenna has been tested and found to be in good agreement with simulated results, to be potentially explored in wireless communication systems.
“…From the electric field distribution of the near-field and far-field of the original piezoelectric antenna in Fig. 5, it can be seen that the radiation pattern of the piezoelectric antenna is equivalent to the electric dipole [27]. Fig.…”
Section: Design and Fabrication Of Piezoelectric Antennamentioning
This paper presents a novel method to improve the working bandwidth and radiation intensity of piezoelectric antenna by using external circuit. This method makes the piezoelectric antenna combined with roles of high radiation intensity and multiple resonant frequencies without changing the structural size of the piezoelectric antenna. The experimental results show that, compared with the original piezoelectric antenna, the tuning range of the resonant frequency of the piezoelectric antenna caused by the series capacitance and inductance is +13.6 and −24%, respectively. The series inductance will produce new resonance frequency, which provides a new method for the multi-band operation of the piezoelectric antenna. The LLC (series and parallel circuit) composite circuit can increase the number of resonant frequencies of the piezoelectric antenna from 1 to 3, and the S11 at the resonant frequencies are all lower than −10 dB, and the radiated magnetic field of the piezoelectric antenna is increased by 42.3% at least. This method makes the piezoelectric antenna have the dual functions of high radiation intensity and multi-band, which has great significance for broadening the application field of piezoelectric antenna.
“…Due to increased channel capacity and reduced multipath fading, linearly polarized (LP) antennas with ±45• dual slant polarization have been set up as standard base station antennas to provide mobile communication services [3]. Therefore, Researchers have tried to design and introduce different structures of this kind of antenna for base transceiver station (BTS) applications, including crosseddipole antennas [4][5][6][7][8][9][10], patches antennas [11][12][13], magnetoelectric dipole antennas [14][15][16] and slot antennas [17]. The ease of structural modification of dual-polarized (±45•) crossed dipole antennas can satisfy the requirements of the BTS antennas, such as low cost, simple assembly high, front-to-back, high isolation, broad impedance bandwidth, and desirable beam width for the cell sector design [1][2][3][4][5][6][7][8][9][10].…”
This paper presents and investigates broadband circularly polarized (CP) printed crossed dipole antenna and its arrays. The proposed antenna comprises a pair of crossed fan-shaped dipoles, two kinds of parasitic elements, and a reflector with two vertical side walls. A three-quarter circular phase shifter connected to the fan-shaped arms of this antenna allows it to radiate CP waves due to the excitation of the arms and the creation of sequential phases in them. The significant contribution of this work is the creation of electromagnetic coupling between the crossed fan-shaped dipoles and parasitic elements to improve the purity of CP radiation and increase the axial ratio (AR) bandwidth. The proposed antenna has upgraded into 4-element and 8-element array models as cellular base station antennas for PCS/DCS/UMTS systems. The experiments indicate that the proposed CP antenna achieves an impedance bandwidth of 57% (1.47-2.65 GHz) for VSWR < 2, an AR bandwidth of 33% (1.65-2.3 GHz) for AR < 3 dB, and a gain of 7.8-8.7 dB. The implemented arrays of 1×4 and 1×8 arrangement achieve peak gains of 13.2 and 16.1 dB, respectively. The horizontal half-power beam widths (HPBWs), horizontal axial ratio beam widths (ARBWs), and front-toback ratios (FBRs) for antenna arrays are around 64° ± 3°, more than 90°, and higher than 25 dB, respectively.INDEX TERMS Antenna array, axial ratio, base station, circularly polarized, crossed-dipole.
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