scholarly journals Circularly Polarized Microstrip Yagi Array Antenna with Wide Beamwidth and High Front-to-Back Ratio

2016 ◽  
Vol 2016 ◽  
pp. 1-15
Author(s):  
Yun Hao ◽  
Haomeng Tong ◽  
Xihong Ye
Keyword(s):  
Vertical Plane ◽  
High Gain ◽  
Array Antenna ◽  
Steering Angle ◽  
Circularly Polarized ◽  
Wide Range ◽  
Parametric Studies ◽  
Front Point ◽  
Peak Gain ◽  
Good Agreement

A circularly polarized (CP) Microstrip Yagi array antenna (MSYA) is designed in order to achieve high front-to-back ratioR(F/B)and high gain over wide range in the forward radiation space. A Wilkinson power divider owning two output ways with the same magnitude and different phase is used to feed the antenna. Parametric studies are carried out to investigate the effects of some key geometrical sizes on the antenna’s performance. A prototype of the antenna is fabricated, and good agreement between the measured results and the numerical simulations is observed. The overlap bandwidth of VSWR ≤ 1.5 and AR ≤ 3 dB is about 11%. The steering angle (α) between the peak gain direction and the broadside can achieve 35°,R(F/B)reaches 19 dB, and the gain at the front point (G0) is only 4.3 dB lower than the maximum gain (Gm). The antenna has a wide beamwidth CP radiation pattern over wide spatial range including 0° ≤θ≤ 90° in vertical plane and −35° ≤φ≤ 55° in horizontal plane.

scholarly journals High Gain of 2x1 Simulated Circularly Polarized Rectangular Microstrip Patch Array Antenna

2020 ◽  
Vol 917 ◽  
pp. 012071
Author(s):  
Nurasma Husna ◽  
Mohd Aminudin Jamlos ◽  
Wan Azani Mustafa ◽  
Syed Zulkarnain Syed Idrus
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Circularly Polarized ◽  
Microstrip Patch

High Gain Modified Dual-Band and Dual-Circularly Polarized Array Antenna

2017 ◽  
Vol 97 (2) ◽  
pp. 2131-2144 ◽  
Author(s):  
Saeed Mohammadi-Asl ◽  
Javad Nourinia ◽  
Changiz Ghobadi ◽  
Maryam Majidzadeh ◽  
Ehsan Mostafapour ◽  
...  
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Dual Band ◽  
Circularly Polarized

scholarly journals Maple leaf shaped array antenna for multiband applications

2017 ◽  
Vol 7 (1.1) ◽  
pp. 494
Author(s):  
M Vasujadevi ◽  
B T P Madhav ◽  
A Shiva Skandan ◽  
P Rajeswari ◽  
K Arjun Rao ◽  
...  
Keyword(s):  
Traffic Control ◽  
Return Loss ◽  
High Gain ◽  
Array Antenna ◽  
Single Antenna ◽  
X Band ◽  
Military Applications ◽  
Field Radiation ◽  
Peak Gain ◽  
Ku Band

This article presents design and analysis of maple leaf shaped array antenna for high gain applications. The proposed antenna is characterized and analyzed using ANSYS EM desktop 17. This antenna works at 2.17-2.54(S band),5.3-5.64, 6.91-7.80(C Band), 8.76-9.15(X band), 12.49-12.75, 14.78-16.65(Ku band). The bands of the proposed antenna has its applications at LTE 2.3 GHz, ISM 2.4 GHz, WLAN, ISM, Bluetooth at S-band and upper WLAN at C-band, Military applications and air traffic control at X-band. This single antenna dimensioned 21x18x1.6 mm³ is later arrayed in 1x4. This antenna has peak gain at 7.8dB and the average gain of 4.2dB. The proposed 1x4 array antenna is characterized and obtained return loss, gain, E field, current distribution and far field radiation patterns.

An Omnidirectional Circularly Polarized Slot Array Antenna With High Gain in a Wide Bandwidth

2015 ◽  
Vol 14 ◽  
pp. 666-669 ◽  
Author(s):  
Bin Zhou ◽  
Junping Geng ◽  
Xudong Bai ◽  
Luyang Duan ◽  
Xianling Liang ◽  
...  
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Wide Bandwidth ◽  
Circularly Polarized

scholarly journals Circularly polarized antenna array based on hybrid couplers for 5G devices

2021 ◽  
Vol 10 (3) ◽  
Author(s):  
Tan Minh Cao ◽  
Thao Hoang Thi Phuong ◽  
Thi Duyen Bui
Keyword(s):  
Antenna Array ◽  
High Efficiency ◽  
3D Structure ◽  
High Gain ◽  
Operating Frequency ◽  
Antenna Gain ◽  
Suitable Candidate ◽  
Circularly Polarized ◽  
Operating Bandwidth ◽  
Peak Gain

This paper depicts a wideband circularly polarized (CP) antenna for 5G devices. The antenna array has a 3D structure including four simple printed dipole elements with directional radiations, high gain, and high efficiency. It achieves a CP by using the sequential rotation (SR) feeding based on 90°-3dB hybrid couplers in the proposed feeding network. The antenna array bandwidth is wide, 26.7%, with an operating frequency band from 3.35 GHz to 4.35 GHz. The antenna achieves a high peak gain of 10.73 dBi and high efficiency of 93.75%. Besides, the antenna gain is stable over the operating bandwidth (BW). At the centre operating frequency of 3.75 GHz, the angle of circular polarization is 51°. The antenna is designed and fabricated on the Rogers 4003 C substrate. The measured S11 is well matching with the simulation results. With the above characteristics, the proposed antenna can be a suitable candidate for 5G devices.

scholarly journals Metallic Reflector-Based X-Band Circularly Polarized Hollow Dielectric Resonator Antenna for High Gain in UWB Applications

2021 ◽  
Author(s):  
SACHIN KUMAR YADAV ◽  
Amanpreet Kaur ◽  
Rajesh Khanna
Keyword(s):  
Circular Polarization ◽  
Dielectric Resonator ◽  
Near Field ◽  
Axial Ratio ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Circularly Polarized ◽  
X Band ◽  
Peak Gain

Abstract A circularly polarized hollow dielectric resonator antenna (CPHDRA) is designed for X-band applications. Rectangular dielectric resonator (RDR) is used as a radiator element, fed by a quarter-wave transformer (QWT) feedline. By performance of the RDR antenna, an air cylindrical rod structure is extracted from RDR to enhance the gain and impedance bandwidth. Two parasitic strips are placed on the top of the RDR to achieve circular polarization with reported ≤ 3-dB axial ratio (AR) bandwidth for X-band applications. In this article, UWB antenna covers range from 2.74 to 10.4GHz by using asymmetrical defective ground structure (DGS). In near field of the dielectric resonator, three different radiating modes namely HE11δ, HE21δ, HE23δ, and HE32δ are at 4.4, 6, 8.8, and 9.9 GHz. For the generation of circular polarization (CP), two orthogonal modes are generated at 8.8 and 9.9 GHz as per XZ and YZ planes. It has reported 23.8 % (8 to 10.1 GHz) of 3-dB AR bandwidth. The simulated and measured impedance bandwidths are 118.46 % and 121.12 % along with a peak gain of 6.55 dB without the use of a metallic reflector. By using a metallic reflector suspended in the bottom side of the substrate with a distance of 13.1mm is reported along with the peak gain of 9.8 dBi.

A High Gain Circularly Polarized Microstrip Array Antenna At Millimeter-Wave Band

2021 ◽  
Author(s):  
Youjian Hu ◽  
Qingwen Deng ◽  
Xiaojun Ying ◽  
Siyi Shen ◽  
Yuming Zeng ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
High Gain ◽  
Array Antenna ◽  
Wave Band ◽  
Circularly Polarized ◽  
Millimeter Wave Band ◽  
Microstrip Array ◽  
Microstrip Array Antenna
Sign in / Sign up

Export Citation Format

Share Document