A High-Gain Circularly Polarized U-Slot Patch Antenna Array [Antenna Designers Notebook]

2018 ◽  
Vol 60 (5) ◽  
pp. 147-153 ◽  
Author(s):  
Kwok Kan So ◽  
Kwai Man Luk ◽  
Chi Hou Chan
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
High Gain ◽  
Array Antenna ◽  
Circularly Polarized

scholarly journals Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

2021 ◽  
Vol 11 (19) ◽  
pp. 8869
Author(s):  
Manzoor Elahi ◽  
Son Trinh-Van ◽  
Youngoo Yang ◽  
Kang-Yoon Lee ◽  
Keum-Cheol Hwang
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Axial Ratio ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Small Satellite ◽  
Next Generation ◽  
Circularly Polarized ◽  
Microstrip Patch ◽  
Left Handed

In this article, a high gain and compact 4 × 4 circularly polarized microstrip patch antenna array is reported for the data transmission of the next-generation small satellite. The radiating element of the circularly polarized antenna array is realized by the conventional model of the patch with truncated corners. A compact two-stage sequential rotational phase feeding is adopted that broadens the operating bandwidth of the 4 × 4 array. A small stub is embedded in the sequential rotational feed, which results in better performance in terms of the S-parameters and sequential phases at the output ports than sequential rotational feed without open stub. A prototype of the array is fabricated and measured. Fulfilling the application requirements of the next-generation small satellites, the array has the left-handed circularly polarized gain of more than 12 dBic with the axial ratio level below 1.5 dB in the ±10∘ angular space with respect to the broadside direction for the whole bandwidth from 8.05 GHz to 8.25 GHz. Moreover, the left-handed circularly polarized gain varies from 15 to 15.5 dBic in the desired band. The radiation patterns are measured; both the co- and X-pol are validated.

60-GHz LTCC Differential-Fed Patch Antenna Array With High Gain by Using Soft-Surface Structures

2017 ◽  
Vol 65 (1) ◽  
pp. 206-216 ◽  
Author(s):  
Huayan Jin ◽  
Wenquan Che ◽  
Kuo-Sheng Chin ◽  
Guangxu Shen ◽  
Wanchen Yang ◽  
...  
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
High Gain ◽  
Surface Structures ◽  
60 Ghz ◽  
Soft Surface
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