scholarly journals Broadband Multilayered Array Antenna with EBG Reflector

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
P. Chen ◽  
X. D. Yang ◽  
C. Y. Chen ◽  
Z. H. Ma
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Directivity Pattern ◽  
Array Antenna ◽  
Impedance Bandwidth ◽  
Laminate Structure ◽  
Test Results ◽  
Microstrip Antenna Array ◽  
Slot Structure ◽  
Slot Coupling

Most broadband microstrip antennae are implemented in the form of slot structure or laminate structure. The impedance bandwidth is broadened, but meanwhile, the sidelobe of the directivity pattern and backlobe level are enlarged. A broadband stacked slot coupling microstrip antenna array with EBG structure reflector is proposed. Test results indicate that the proposed reflector structure can effectively improve the directivity pattern of stacked antenna and aperture coupled antenna, promote the front-to-back ratio, and reduce the thickness of the antenna. Therefore, it is more suitable to be applied as an airborne antenna.

A Broad Band and Wide Beam Microstrip Antenna Array

2013 ◽  
Vol 427-429 ◽  
pp. 648-651
Author(s):  
Xiao Feng Xiong ◽  
Wei Dong Chen
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Broad Band ◽  
Operating Mode ◽  
Impedance Bandwidth ◽  
Axial Mode ◽  
Wide Beam ◽  
Microstrip Antenna Array ◽  
Helical Antennas

A novel broad band and wide beam microstrip helical antenna is proposed based on the modification of traditional helical antennas. Through selecting the appropriate operating mode between the axial mode and the normal mode, this new antenna can broad both the beamwidth and the bandwidth. To improve the gain of the antenna, An antenna array with 1*16 elements is designed and fabricated. Meanwhile, cavity-loaded feeding network is utilized for probe station measurement. The simulated impedance and radiation pattern are studied. The proposed antenna shows a wide impedance bandwidth from 7.6GHz to 9.6GHz for |S11|<-10dB, with wide 3dB beamwidth of E-plane about 1200, respectively.

Design of the Weighted Series Feeding Microstrip Antenna Array

2014 ◽  
Vol 1078 ◽  
pp. 317-320
Author(s):  
Shuang Zhao ◽  
Yun Qing Liu
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Phase Control ◽  
Array Antenna ◽  
Electrical Networks ◽  
Space Utilization ◽  
Microstrip Patch ◽  
Microstrip Antenna Array ◽  
Stable Performance ◽  
High Level

The design of the amplitude spaced antenna array is relatively simple, but it has a relatively large drawback that its sidelobe is at a relatively high level. In this paper, we use a series network to feed the radiating elements of the array antenna to achieve the amplitude and phase control. Comparing with the ordinary feeding array, it effectively reduces the loss of electrical networks and improves the space utilization of the antenna. A planar microstrip patch array antenna using the series feeding and resonating at 35.75GHz is designed. The simulation result shows that this antenna array has a gain of 22dB, small sidelopes and stable performance.

Sign in / Sign up

Export Citation Format

Share Document