Broadband and high gain waveguide‐fed slot antenna array in the Ku‐band

2014 ◽  
Vol 8 (13) ◽  
pp. 1041-1046 ◽  
Author(s):  
Huang Guan‐Long ◽  
Zhou Shi‐Gang ◽  
Chio Tan‐Huat ◽  
Yeo Tat‐Soon
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Slot Antenna ◽  
Ku Band

scholarly journals A New Compact and High Gain Circularly-Polarized Slot Antenna Array for Ku-Band Mobile Satellite TV Reception

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 6707-6714 ◽  
Author(s):  
Jianquan Huang ◽  
Feng Qiu ◽  
Wei Lin ◽  
Zhenghua Tang ◽  
Dajun Lei ◽  
...  
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Slot Antenna ◽  
Circularly Polarized ◽  
Mobile Satellite ◽  
Ku Band

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.

scholarly journals High Gain Ku-Band Substrate Integrated Waveguide Slot Antenna Arrayru_RU

2015 ◽  
Vol 8 (3) ◽  
pp. 319-323
Author(s):  
Konstantin V. Lemberg ◽  
◽  
Oleg A. Nazarov ◽  
Vasiliy S. Panko ◽  
Yury P. Salomatov ◽  
...  
Keyword(s):  
High Gain ◽  
Slot Antenna ◽  
Substrate Integrated Waveguide ◽  
Waveguide Slot ◽  
Waveguide Slot Antenna ◽  
Ku Band

A High-Gain, High-Efficiency, and Compact Continuous Transverse Stub Antenna Array at Ku Band

2021 ◽  
Author(s):  
Hongjun Chu ◽  
Teni Geer ◽  
Na Wu ◽  
Chen Zhou ◽  
Ming Zhou
Keyword(s):  
Antenna Array ◽  
High Efficiency ◽  
High Gain ◽  
Ku Band

scholarly journals 3D Printed High Gain Complementary Dipole/Slot Antenna Array

2018 ◽  
Vol 8 (8) ◽  
pp. 1410 ◽  
Author(s):  
Kwok So ◽  
Kwai Luk ◽  
Chi Chan ◽  
Ka Chan
Keyword(s):  
Antenna Array ◽  
High Gain ◽  
Dipole Antenna ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Frequency Range ◽  
Operating Frequency Range ◽  
3D Printed ◽  
Stable Frequency

By employing the complementary dipole antenna concept to the normal waveguide fed slot radiator, an improved antenna element with wide impedance bandwidth and symmetrical radiation patterns is developed. This is achieved by mounting two additional metallic cuboids on the top of the slot radiator, which is equivalent to adding an electric dipole on top of the magnetic dipole due to the slot radiator. Then, a high-gain antenna array was designed based on the improved element and fabricated, using 3D printing technology, with stable frequency characteristics operated at around 28 GHz. This was followed by metallization via electroplating. Analytical results agree well with the experimental results. The measured operating frequency range for the reflection coefficient ≤−15 dB is from 25.7 GHz to 29.8 GHz; its corresponding fractional impedance bandwidth is 14.8%. The measured gain is approximately 32 dBi, with the 3 dB beamwidth around 4°.

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