Design of Conical Equiangular Spiral Antenna with Wide Bandwidth and High Gain

2021 ◽  
Author(s):  
Liping Zong ◽  
Xianzheng Zong ◽  
Zaiping Nie ◽  
Youcheng Wang ◽  
Peng Jiang
Keyword(s):  
High Gain ◽  
Spiral Antenna ◽  
Wide Bandwidth ◽  
Equiangular Spiral

AN IMPROVEMENT TO DIRECTIONAL EQUIANGULAR SPIRAL ANTENNA WITH WIDE CP BAND, HIGH GAIN AND LOW PROFILE

2014 ◽  
Vol 48 ◽  
pp. 53-60 ◽  
Author(s):  
Xiang Liu ◽  
Jun-Ping Geng ◽  
Xianling Liang ◽  
Rong-Hong Jin ◽  
Cheng Zhang ◽  
...  
Keyword(s):  
High Gain ◽  
Spiral Antenna ◽  
Low Profile ◽  
Equiangular Spiral

scholarly journals ULTRA WIDE BANDWIDTH HIGH GAIN VIVALDI ANTENNA FOR WIRELESS COMMUNICATIONS

2017 ◽  
Vol 69 ◽  
pp. 105-111 ◽  
Author(s):  
Dalia Mohammed Nasha Elsheakh ◽  
Nermeen A. Eltresy ◽  
Esmat Abdallah Abdel Fattah
Keyword(s):  
Wireless Communications ◽  
High Gain ◽  
Wide Bandwidth ◽  
Vivaldi Antenna

scholarly journals Design of Wideband Slot Antenna Array with Stereoscopic Differentially Fed Structures

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Guang Sun ◽  
Ge Gao ◽  
Tingting Liu ◽  
Yi Liu ◽  
Hu Yang
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Radar System ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Radiation Characteristics ◽  
Wide Bandwidth ◽  
Feeding Structure

In this paper, a wideband slot antenna element and its array with stereoscopic differentially fed structures are proposed for the radar system. Firstly, a series of slots and a stereoscopic differentially fed structure are designed for the antenna element, which makes it possess a wide bandwidth, stable radiation characteristics, and rather high gain. Moreover, the stereoscopic feeding structure can firmly support the antenna’s radiation structure and reduce the influence of feeding connectors on radiating performance. Secondly, a 4 × 4 array is designed using the proposed antenna element. And a hierarchical feeding network is designed for the array on the basis of the stereoscopic differentially fed structure. For validation, the antenna element and 4 × 4 array are both fabricated and measured: (1) the measured −10 dB impedance bandwidth of the antenna element is 62% (6.8–12.9 GHz) and the gain within the entire band is 5–9.7 dBi and (2) the measured −10 dB impedance bandwidth of the array is approximately 50% (7 to 12 GHz) with its gain being 14–19.75 dBi within the entire band. Notably, measured results agree well with simulations and show great advantages over other similar antennas on bandwidth and gain.

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