A Dual-Band Metasurface Antenna Using Characteristic Mode Analysis

Li, Teng; Chen, Zhi Ning

doi:10.1109/tap.2018.2860121

Cited by 215 publications

(105 citation statements)

References 29 publications

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“…This structure would lead to higher order modes (e.g., the TE 20 mode), thus the matching becomes worse. The width design of the transition section is important, as it will suppress the higher order modes and broaden the bandwidth [24,25]. Several conclusions can be drawn here: (1) phase errors have more serious effects than amplitude errors; (2) as phase errors increase, the amplitude and phase distributions show large deviations in some edge regions; and (3) the affected area moves along with different observation distances z.…”

Section: Traditional Y-junction Structurementioning

confidence: 80%

A High Channel Consistency Subarray of Plane-Wave Generators for 5G Base Station OTA Testing

2019

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A high channel consistency subarray of plane-wave generators (PWG) is described for fifth-generation (5G) base station (BS) over-the-air (OTA) testing. Firstly, the variation of the near field radiation characteristics of the subarray based on the feed amplitude and phase errors of the traditional power divider network is analyzed. The recommended amplitude and phase errors between channels are given. After that, a novel subarray which combines four pyramidal horn antennas and a compact 1:4 waveguide power divider is designed. The optimized perfectly symmetrical zigzag waveguide transmission lines are used to realize consistent power allocation among antenna elements. No intermediate pins are employed, which avoids the significant deterioration of channel consistency caused by assembly errors. The size of the subarray is 4.89 λ0 × 4.97 λ0 × 1.23 λ0 (λ0 is the working wavelength corresponding to the subarray center frequency at 3.5 GHz). The VSWR < 1.5 impedance bandwidth covers 3.4 GHz to 3.6 GHz. The amplitude difference between the four elements of the subarray is less than 0.5 dB, and the phase difference is less than 3°. The simulated and measured results agree well in this design.

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Section: Traditional Y-junction Structurementioning

confidence: 80%

A High Channel Consistency Subarray of Plane-Wave Generators for 5G Base Station OTA Testing

2019

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“…This misalignment may also have affected the accuracy of the measured values. Finally, as shown in Table 2, the size and the gain of the proposed antenna are compared with array antennas, 4-6 MIMO antenna, 7-9 metasurface antenna, 10,13 and metamaterial antenna. [14][15][16][17][18] The MPA with VCSRM demonstrates better performance over MIMO, metasurface, metamaterial, and array antenna with its high gain and small size.…”

Section: Simulation and Measurement Resultsmentioning

confidence: 99%

“…However, these antennas are large in size and complex design is required to solve the problem of coupling between elements or ports of an antenna. The use of metamaterial is a promising technology for performance enhancement, miniaturization, and easy fabrication of antennas . Metamaterial's permeability ( μ ) and dielectric constant ( ε r ) parameters are set to negative values at the same frequency.…”

Section: Introductionmentioning

confidence: 99%

“…The use of metamaterial is a promising technology for performance enhancement, miniaturization, and easy fabrication of antennas. [10][11][12][13] Metamaterial's permeability (μ) and dielectric constant (ε r ) parameters are set to negative values at the same frequency. Under this condition, the electromagnetic wave is refracted in the opposite direction, and the focus is caused by this material.…”

Section: Introductionmentioning

confidence: 99%

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Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement

Jeong

Hussain

Park

et al. 2019

Micro & Optical Tech Letters

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This article presents a millimeter‐wave (mmWave) microstrip patch antenna (MPA) with a vertically coupled split ring metaplate (VCSRM). The narrow bandwidth and low gain of MPA are improved using VCSRM by periodically arranging split rings on the front and backsides of a dielectric slab. Numerical and experimental results show that the proposed antenna attains good radiation pattern, a high gain of 11.94 dBi, and a measured fractional bandwidth covering 26.58 to 29.31 GHz (9.77%). The gain of the antenna is increased by 5.35 dBi and the bandwidth is improved by 3.87% when compared to MPA without VCSRM. Thus, the proposed antenna with a small size of 18 × 22 mm2 is suitable for mmWave applications.

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“…The TCM is based on the method of moment formulation of electric field integral equation and is found to be useful in proving various antenna parameters in the literature. In recent years, different types of antennas well designed by using characteristic mode theory (CMT) for different applications are Slot antennas [7][8][9][10], MIMO antennas [11][12][13][14], UWB antennas [15][16][17], Platform antennas [18][19][20][21], Metasurface antennas [22][23][24][25][26], and Wideband antennas [27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Mode Analysis of Wideband Microstrip Antenna

Perli¹,

Rao²

2019

PIER C

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In this paper, a wideband antenna is designed systematically based on characteristic mode analysis (CMA). The antenna consists of a rectangle, a semi-annular ring, and a microstrip line. The radiating behavior and resonant frequencies of the radiating element are analyzed by using first four characteristic modes. First two modes only have wideband behavior and are excited by CPW feeding technique. The proposed antenna is printed on a low cost FR4 substrate with a size of 35× 50× 1.6 mm 3 and impedance bandwidth ranging from 1.6 to 3.8 GHz for the applications of GSM, DCS, LTE, and WIMAX. To validate the proposed approach, the wideband antenna is fabricated and tested. A wide impedance bandwidth of 81% with |S 11 | < −10 dB is achieved for both simulation and measurement results.

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A Dual-Band Metasurface Antenna Using Characteristic Mode Analysis

Cited by 215 publications

References 29 publications

A High Channel Consistency Subarray of Plane-Wave Generators for 5G Base Station OTA Testing

A High Channel Consistency Subarray of Plane-Wave Generators for 5G Base Station OTA Testing

Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement

Characteristic Mode Analysis of Wideband Microstrip Antenna

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