Analysis, Design and Fabrication of a Square Slot Loaded (SSL) Millimeter-Wave Patch Antenna Array for 5G Applications

2020 ◽  
pp. 2150086
Author(s):  
Bilal Aghoutane ◽  
Sudipta Das ◽  
Hanan EL Faylali ◽  
B.T.P. Madhav ◽  
Mohammed EL Ghzaoui ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Patch Antenna ◽  
Impedance Bandwidth ◽  
Measurement Results ◽  
Quarter Wave ◽  
Feed Network ◽  
Analysis Design ◽  
Wave Transformer ◽  
Good Agreement

A new compact [Formula: see text] microstrip patch antenna array design for future 5G applications is presented in this paper. The proposed antenna array consists of square slot loaded with four radiating patch elements. The corporate feed network has been implemented for the excitation of the array. The feed line is connected to the square slot patch through a quarter-wave transformer matching network. The proposed array is designed on an FR-4 substrate with a dielectric constant of 4.4, thickness of 1.6[Formula: see text]mm and loss tangent (tan[Formula: see text] of 0.02. It has a compact dimension of 9.590[Formula: see text] 17.802[Formula: see text]. The proposed structure has been designed and simulated by using commercially available HFSS software. The simulated results (reflection coefficient, gain, efficiency, radiation pattern) are verified through the measurement process to confirm the validity of the design concept. The measurement results are in good agreement with the simulated results. The proposed structure resonates at 38.1[Formula: see text]GHz with a [Formula: see text]10[Formula: see text]dB impedance bandwidth of about 3700[Formula: see text]MHz (36.5[Formula: see text]GHz to 40.2[Formula: see text]GHz). The reflection coefficient at 38.1[Formula: see text]GHz is [Formula: see text]34[Formula: see text]dB, with a maximum gain of 7.81[Formula: see text]dB. The proposed square slot loaded patch antenna array is very promising for 5G communications at 38[Formula: see text]GHz band (37–40[Formula: see text]GHz).

SIW-fed microstrip patch antenna array for circular polarization

2017 ◽  
Vol 9 (9) ◽  
pp. 1877-1881 ◽  
Author(s):  
Laaya Sabri ◽  
Nasrin Amiri ◽  
Keyvan Forooraghi
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
High Radiation ◽  
Microstrip Patch ◽  
X Band ◽  
Good Agreement

A new single-feed aperture-coupled, X-band microstrip patch antenna array with circular polarization (CP) is designed. CP is achieved using indented microstrip patches fed through the slots on a substrate integrated waveguide. The antenna has the high radiation efficiency more than 90% over the operating frequency. Impedance bandwidth (VSWR < 2) and axial ratio bandwidth (AR < 3 dB) of 11.8, and 10.9% is attained, respectively. Good agreement is achieved between simulated and measured results.

scholarly journals A Wideband End-Fire Conformal Vivaldi Antenna Array Mounted on a Dielectric Cone

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Zengrui Li ◽  
Xiaole Kang ◽  
Jianxun Su ◽  
Qingxin Guo ◽  
Yaoqing (Lamar) Yang ◽  
...  
Keyword(s):  
Antenna Array ◽  
Antenna Element ◽  
Radiation Characteristics ◽  
Antenna Measurement ◽  
Radiation Beam ◽  
Conformal Antenna ◽  
Single Antenna ◽  
Measurement Results ◽  
Vivaldi Antenna ◽  
Good Agreement

The characteristics of a novel antipodal Vivaldi antenna array mounted on a dielectric cone are presented. By employing antipodal Vivaldi antenna element, the antenna array shows ultrawide bandwidth and end-fire radiation characteristics. Our simulations show that the cone curvature has an obvious influence on the performance of the conformal antenna, in terms of both the bandwidth and the radiation patterns. The thickness and permittivity of the dielectric cone have an effect on the bandwidth of the conformal antenna. Measurement results of both single antenna and conformal antenna array show a good agreement with the simulated results. The measured conformal antenna can achieve a −10 dBS11with bandwidth of 2.2–12 GHz and demonstrate a typical end-fire radiation beam. These findings provide useful guidelines and insights for the design of wideband end-fire antennas mounted on a dielectric cone.

scholarly journals Beamwidth-Enhanced Low-Profile Dual-Band Circular Polarized Patch Antenna for CNSS Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Hongmei Liu ◽  
Chenhui Xun ◽  
Shaojun Fang ◽  
Zhongbao Wang
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Axial Ratio ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Coupled Line ◽  
Low Profile ◽  
Feed Network ◽  
Single Input ◽  
Half Power

A low-profile dual-band circular polarized (CP) patch antenna with wide half-power beamwidths (HPBWs) is presented for CNSS applications. Simple stacked circular patches are used to achieve dual-band radiation. To enhance the HPBW for the two operation bands, a dual annular parasitic metal strip (D-APMS) combined with reduced ground plane (R-GP) is presented. A single-input feed network based on the coupled line transdirectional (CL-TRD) coupler is also proposed to provide two orthogonal modes at the two frequency bands simultaneously. Experimental results show that the 10 dB impedance bandwidth is 32.7%. The 3 dB axial ratio (AR) bandwidths for the lower and upper bands are 4.1% and 6.5%, respectively. At 1.207 GHz, the antenna has the HPBW of 123° and 103° in the xoz and yoz planes, separately. And the values are 127° and 113° at 1.561 GHz.

scholarly journals A Compact Dielectric Resonator Antenna Excited by a Planar Monopole Patch for Wideband Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Xuping Li ◽  
Yabing Yang ◽  
Fei Gao ◽  
Hanqing Ma ◽  
Xiaowei Shi
Keyword(s):  
Reflection Coefficient ◽  
Dielectric Resonator ◽  
Ground Plane ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
High Radiation ◽  
Ansoft Hfss ◽  
Measurement Results ◽  
Broadside Radiation ◽  
Operation Frequency

A compact dielectric resonator antenna (DRA) suitable for wideband applications is presented in this paper. The proposed antenna is mainly composed by a notched cylindrical dielectric resonator (DR) coated with a metal surface on the top and a finite ground plane where the presented DR is placed. This antenna is very simple in structure and has a very low overall height of0.14λminat its lowest operation frequency. A comprehensive parametric study is carried out based on Ansoft HFSS to optimize the bandwidth. The proposed antenna has been successfully simulated, optimized, fabricated, and measured. The measurement results demonstrate that the proposed design produces an impedance bandwidth of more than 75%, ranging from 2.9 GHz to 6.7 GHz for the reflection coefficient less than −10 dB. In particular, consistent broadside radiation patterns, stable gain, and high radiation efficiency are also obtained within the operation frequency band.

scholarly journals Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Pingyuan Zhou ◽  
Zhuo Zhang ◽  
Mang He ◽  
Yihang Hao ◽  
Chuanfang Zhang
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Axial Ratio ◽  
Satellite Communications ◽  
Lateral Size ◽  
Circularly Polarized ◽  
Feeding Technique ◽  
Microstrip Antenna Array

A small-size 2×2 broadband circularly polarized microstrip antenna array is proposed in this article. The array has four broadband dual-feed U-slot patch antenna elements with circular polarization, and the sequential feeding technique is used to further enhance the 3 dB axial ratio bandwidth. The lateral size of the fabricated array is as small as 1.33λ0×1.33λ0, and the profile is only 0.04λ0. Measured results show that the overlapped −10 dB reflection coefficient and the 3 dB AR bandwidth is 53%, and the variation of the measured realized gain is less than 1 dB for S-band satellite communications (1.98–2.2 GHz).

scholarly journals Sidelobe Suppression in Array-Pattern Synthesis Using Periodic Leaky-Wave Antenna and Binomial Array

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Hicham Aziz ◽  
Mahmoud Moubadir ◽  
Abdelkrim Farkhsi ◽  
Naima Amar Touhami
Keyword(s):  
Antenna Array ◽  
Sidelobe Suppression ◽  
Sidelobe Level ◽  
Leaky Wave ◽  
Pattern Synthesis ◽  
Array Pattern ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Measurement Results ◽  
Good Agreement

This paper presents the conception and realization of a 2D antenna array using periodic leaky-wave antenna (PLWA) and the binomial array (BA) at 6 GHz as the application of WLAN. The series array of periodic leaky-wave antenna was provided by an array of five rectangular Patches connected by cross lines. The nonuniform amplitudes of the binomial array are used to reduce the sidelobe level; in this way, the center source radiates strongly on the broadside. The prototype of the proposed 2D antenna array is designed, fabricated, and tested. A good agreement is obtained between simulated and measurement results.

Dual circularly polarized multilayer MIMO antenna array with an enhanced SR-feeding network for C-band application

2017 ◽  
Vol 9 (8) ◽  
pp. 1741-1748 ◽  
Author(s):  
Mahdi Jalali ◽  
Mohammad Naser-Moghadasi ◽  
Ramezan Ali Sadeghzadeh
Keyword(s):  
Antenna Array ◽  
Tai Chi ◽  
Impedance Matching ◽  
Axial Ratio ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Circularly Polarized ◽  
Mimo Antenna ◽  
Feed Network

Wide-band circularly polarized multi-input multi-output (MIMO) antenna array with a 2 × 4 feed network was proposed for C-band application. Different unique techniques were utilized in the proposed array to enhance the antenna characteristics, such as gain, 3 dB axial ratio bandwidth (ARBW), impedance tuning, and ruinous mutual coupling effects. A miniaturized dual-feed Tai chi-shaped antenna element with a pair of feeding points and a pair of eyebrow-shaped strips was presented for enhancing circular polarization (CP) purity and impedance matching. For a better improvement of CP features, a 2*4 MIMO sequentially rotated (MIMO-SR) feed network was used to achieve broader 3 dB ARBW. Besides, the MIMO feature of the feed network could control the left- and right-handed CP, respectively. Ultimately, specific forms of slot and slit structures were applied onto the top layer of MIMO feed network that provided a high isolation between the radiating elements and array network. Furthermore, the diversity gain (DG) was studied. The extracted measured results illustrated an impedance bandwidth of 3.5–8.2 GHz at port 1 and 3.5–8.3 GHz at port 2 for VWSR < 2 and 3 dB ARBW of 4.6–7.6 GHz at port 1 and 4.6–7.5 GHz at port 2. The peak gain of 9.9 dBi was at 6 GHz.

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