Parallel–series feed network with improved G/T performance for high-gain microstrip antenna arrays

2008 ◽  
Vol 44 (3) ◽  
pp. 180 ◽  
Author(s):  
M. Yousefbeigi ◽  
A. Enayati ◽  
M. Shahabadi ◽  
D. Busuioc
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
High Gain ◽  
Feed Network ◽  
Parallel Series

Circularly polarized microstrip antenna arrays with reduced mutual coupling using metamaterial

2015 ◽  
Vol 8 (8) ◽  
pp. 1253-1263 ◽  
Author(s):  
R. Hafezifard ◽  
Jalil Rashed-Mohassel ◽  
Mohammad Naser-Moghadasi ◽  
R. A. Sadeghzadeh
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Ground Plane ◽  
High Gain ◽  
Ring Resonators ◽  
Magnetic Characteristics ◽  
Circularly Polarized ◽  
Antenna Performance ◽  
Left Handed

A circularly polarized (CP) and high gain Microstrip antenna is designed in this paper using metamaterial concepts. The antenna, built on a metamaterial substrate, showed significant size reduction and less mutual coupling in an array compared with similar arrays on conventional substrates. Demonstrated to have left-handed magnetic characteristics, the methodology uses complementary split-ring resonators (SRRs) placed horizontally between the patch and the ground plane. In order to reduce mutual coupling in the array structure, hexagonal-SRRs are embedded between antenna elements. The procedure is shown to have great impact on the antenna performance specifically its bandwidth which is broadened from 400 MHz to 1.2 GHz for X-band and as well as its efficiency. The structure has also low loss and improved standing wave ratio and less mutual coupling. The results show that a reduction of 26.6 dB in mutual coupling is obtained between elements at the operation frequency of the array. Experimental data show a reasonably good agreement between simulation and measured results.

scholarly journals Compact Ultra-Wideband Series-Feed Microstrip Antenna Arrays for IoT Communications

2021 ◽  
Vol 11 (14) ◽  
pp. 6267
Author(s):  
Tiago Varum ◽  
João Caiado ◽  
João N. Matos
Keyword(s):  
Internet Of Things ◽  
Antenna Arrays ◽  
Millimeter Waves ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
High Gain ◽  
Ultra Wideband ◽  
Huge Number ◽  
Compact Structure ◽  
High Bandwidth

Modern communication systems require high bandwidth to meet the needs of the huge number of sensors and the growing amount of data consumed, and an exponential growth is expected in the future with the integration of internet of things networks. Spectrum regions in the millimeter waves have aroused new interests, mainly because of the contiguous bands available to meet these needs. In return, and to combat the high losses of propagation in these frequencies, higher gain antennas are needed. This paper describes the use of a logarithmic architecture in the design of microstrip antenna arrays, creating structures with high gain and ultra-wide bandwidth. Three different solutions are presented with five, seven, and nine elements, reaching about 25%, 30%, and 44% of bandwidth, achieving ultra-wideband behavior, efficient and with a compact structure operating at frequencies in around 28 GHz.

scholarly journals An efficient analysis of the radial waveguide feed network for microstrip antenna arrays

Radio Science ◽  
2000 ◽  
Vol 35 (1) ◽  
pp. 57-64 ◽  
Author(s):  
H. T. Hui ◽  
X. Q. Sheng ◽  
E. K. N. Yung ◽  
K. M. Luk
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Feed Network ◽  
Radial Waveguide

Millimeter-Wave Microstrip Antenna Arrays with Waveguide Feed Network

Frequenz ◽  
2001 ◽  
Vol 55 (11-12) ◽  
Author(s):  
Wolfgang Menzel ◽  
Marc Schreiner ◽  
Roland Mack ◽  
Pedro J. Navarro Vera
Keyword(s):  
Millimeter Wave ◽  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Feed Network

scholarly journals Millimeter-Wave Microstrip Antenna Array Design and an Adaptive Algorithm for Future 5G Wireless Communication Systems

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Cheng-Nan Hu ◽  
Dau-Chyrh Chang ◽  
Chung-Hang Yu ◽  
Tsai-Wen Hsaio ◽  
Der-Phone Lin
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Minimum Mean Square Error ◽  
High Gain ◽  
Wireless Communication Systems ◽  
Low Profile ◽  
Microstrip Antenna Array

This paper presents a high gain millimeter-wave (mmW) low-temperature cofired ceramic (LTCC) microstrip antenna array with a compact, simple, and low-profile structure. Incorporating minimum mean square error (MMSE) adaptive algorithms with the proposed 64-element microstrip antenna array, the numerical investigation reveals substantial improvements in interference reduction. A prototype is presented with a simple design for mass production. As an experiment, HFSS was used to simulate an antenna with a width of 1 mm and a length of 1.23 mm, resonating at 38 GHz. Two identical mmW LTCC microstrip antenna arrays were built for measurement, and the center element was excited. The results demonstrated a return loss better than 15 dB and a peak gain higher than 6.5 dBi at frequencies of interest, which verified the feasibility of the design concept.

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