Ka-band antipodal fermi-linear tapered slot antenna with a knife edge corrugation

2014 ◽  
Vol 57 (2) ◽  
pp. 485-489 ◽  
Author(s):  
Kiran D. Phalak ◽  
Zouhair Briqech ◽  
Abderazil Sebak
Keyword(s):  

Author(s):  
Meng-Meng Cui ◽  
Yu-Ming Wu ◽  
Zhuo Zhang ◽  
Chao Guo ◽  
Li-Ming Si ◽  
...  


2021 ◽  
Author(s):  
Tongyu Ding ◽  
Mengyu Wang ◽  
Jie Guo ◽  
Jun Xiao ◽  
Qiubo Ye


2015 ◽  
Vol 63 (4) ◽  
pp. 1365-1374 ◽  
Author(s):  
Qi Luo ◽  
Steven Gao ◽  
Chong Zhang ◽  
Dawei Zhou ◽  
Tobias Chaloun ◽  
...  
Keyword(s):  






2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Li-Ming Si ◽  
Yong Liu ◽  
Yongjun Huang ◽  
Weiren Zhu

A slot-microstrip-covered and waveguide-cavity-backed monopulse antenna array is proposed for high-resolution tracking applications at Ka-band. The monopulse antenna array is designed with a microstrip with2×32slots, a waveguide cavity, and a waveguide monopulse comparator, to make the structure simple, reduce the feeding network loss, and increase the frequency bandwidth. The2×32slot-microstrip elements are formed by a metal clad dielectric substrate and slots etched in the metal using the standard printed circuit board (PCB) process with dimensions of 230 mm  ×  10 mm. The proposed monopulse antenna array not only maintains the advantages of the traditional waveguide slot antenna array, but also has the characteristics of wide bandwidth, high consistence, easy of fabrication, and low cost. From the measured results, it exhibits good monopulse characteristics, including the following: the maximum gains of sum pattern are greater than 24 dB, the 3 dB beamwidth of sum pattern is about 2.2 degrees, the sidelobe levels of the sum pattern are less than −18 dB, and the null depths of the difference pattern are less than −25 dB within the operating bandwidth between 33.65 GHz and 34.35 GHz for VSWR ≤ 2.



2019 ◽  
Vol 8 (2) ◽  
pp. 5851-5859

Microstrip antennas are popular because of their low profile, light weight and low cost but narrow bandwidth and gain are the main disadvantages of this antenna. In this paper Multiband Octagonal Patch Antenna has been designed by ring slot technique for working in nine different frequencies presented in multi band C-band, X-band, Ku-band, K-band, Ka-band, Q-band and U-bands. Main applications of these bands are used in terrestrial microwave communications. In this research work, the performance of octagonal patch antenna operating at 7 different bands is analyzed. The Design methodology of the proposed research carried in 2 major modules. 1. Design of Single Octagonal Ring Slot antenna, 2. Design of Double Octagonal Ring Slot antenna. In the first design a single octagonal ring slot microstrip patch antenna is developed which resonates at six frequencies of five different frequency bands of C-band, Ku-band, K-band, Q-band and U-bands. In the second design a double octagonal ring slot microstrip patch antenna is developed which resonates at nine frequencies of six different frequency bands of X-band, Ku-band, K-band, Ka-band, Q-band and U-bands. The proposed antenna has been simulated by HFSS and measured by combinational analyzer.



Author(s):  
Guopeng Yang ◽  
Jinping Zhang ◽  
Yi Yang ◽  
Zhipeng Zhou
Keyword(s):  




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