Sierpinski Diamond Fractal Antenna Array Using A Quarter-Wave Feed Network for Wireless Applications

2019 ◽  
pp. 15-26
Author(s):  
D. Prabhakar ◽  
P. Mallikarjuna Rao ◽  
M. Satyanarayana
Keyword(s):  
Antenna Array ◽  
Fractal Antenna ◽  
Wireless Applications ◽  
Quarter Wave ◽  
Feed Network

scholarly journals Formation of Fractal Antenna Array for Multiband Applications

2019 ◽  
Vol 8 (4) ◽  
pp. 3257-3263
Keyword(s):  
Wireless Communication ◽  
Antenna Array ◽  
Microstrip Antenna ◽  
Dielectric Substrate ◽  
High Gain ◽  
Substrate Material ◽  
Vital Role ◽  
Fractal Antenna ◽  
Self Similarity ◽  
Wireless Applications

Antennas play a vital role in wireless communication; a thirst of excellence in this area is unending. Proposed work describes a concept of fractal multiband antenna designed in the hexagon shape. Basically fractal is the concept used in Microstrip antenna for giving better results than conventional Microstrip antenna. By using hexagonal fractal antenna we can possibly achieve the radiation pattern with high gain. The coaxial feeding is used and multiple hexagons are interconnected in array for maintaining conductivity and to preserve electrical self similarity. Hexagonal antenna is used for different wireless applications. The proposed antenna frequency band covers a large number of wireless communication applications including GPS (1.6GHz), Bluetooth (2.4 GHz) & WLAN (3.6GHz). Antenna design has been designed and simulated by using the software Ansoft’s HFSS and parameters like bandwidth return loss, directivity, VSWR are analyzed. Fabrication of the antenna is done by using wet-etching method, on FR-4 dielectric substrate material. Experimental results are taken on Vector Network Analyzer (VNA) and those obtained results were compared with simulated results. The hexagonal fractal antenna array is found to possess predictable multiband characteristics.

scholarly journals A Single Feed Circularly Polarized Planar Antenna Array

2019 ◽  
Vol 9 (2) ◽  
pp. 657-661
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Communication Systems ◽  
Planar Antenna ◽  
Circularly Polarized ◽  
Quarter Wave ◽  
Feed Network ◽  
Polarization Characteristics ◽  
Structural Simplicity ◽  
Planar Antenna Array

A design of a circularly polarized planar antenna array of elliptical patches is presented. The designed prototype has been verified experimentally. Elliptical patches produce circular polarization by using a single feed only. A corporate feed network with quarter-wave transformers are used for uniform excitation of all the array elements. Primary advantages of the presented antenna array are structural simplicity, good circular polarization characteristics and no side lobes. Here, the design example is given for 2×2 elliptical patches at 2.8 GHz. Similar procedure can be extended for more number of array elements at the desired frequency of operation to cater the need of communication systems where circular polarization is essential.

Analysis, Design and Fabrication of a Square Slot Loaded (SSL) Millimeter-Wave Patch Antenna Array for 5G Applications

2020 ◽  
pp. 2150086
Author(s):  
Bilal Aghoutane ◽  
Sudipta Das ◽  
Hanan EL Faylali ◽  
B.T.P. Madhav ◽  
Mohammed EL Ghzaoui ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Patch Antenna ◽  
Impedance Bandwidth ◽  
Measurement Results ◽  
Quarter Wave ◽  
Feed Network ◽  
Analysis Design ◽  
Wave Transformer ◽  
Good Agreement

A new compact [Formula: see text] microstrip patch antenna array design for future 5G applications is presented in this paper. The proposed antenna array consists of square slot loaded with four radiating patch elements. The corporate feed network has been implemented for the excitation of the array. The feed line is connected to the square slot patch through a quarter-wave transformer matching network. The proposed array is designed on an FR-4 substrate with a dielectric constant of 4.4, thickness of 1.6[Formula: see text]mm and loss tangent (tan[Formula: see text] of 0.02. It has a compact dimension of 9.590[Formula: see text] 17.802[Formula: see text]. The proposed structure has been designed and simulated by using commercially available HFSS software. The simulated results (reflection coefficient, gain, efficiency, radiation pattern) are verified through the measurement process to confirm the validity of the design concept. The measurement results are in good agreement with the simulated results. The proposed structure resonates at 38.1[Formula: see text]GHz with a [Formula: see text]10[Formula: see text]dB impedance bandwidth of about 3700[Formula: see text]MHz (36.5[Formula: see text]GHz to 40.2[Formula: see text]GHz). The reflection coefficient at 38.1[Formula: see text]GHz is [Formula: see text]34[Formula: see text]dB, with a maximum gain of 7.81[Formula: see text]dB. The proposed square slot loaded patch antenna array is very promising for 5G communications at 38[Formula: see text]GHz band (37–40[Formula: see text]GHz).

Focus Beam Synthesis With Circular Antenna Array Based On Radial Waveguide Feed Network

2021 ◽  
pp. 1-1
Author(s):  
Zhao Yang ◽  
Wenxian Zheng ◽  
Daniele Inserra ◽  
Jian Li ◽  
Yongjun Huang ◽  
...  
Keyword(s):  
Antenna Array ◽  
Focus Beam ◽  
Feed Network ◽  
Radial Waveguide ◽  
Circular Antenna Array

DESIGN AND TESTING OF HIGH-PERFORMANCE ANTENNA ARRAY WITH A NOVEL FEED NETWORK

2008 ◽  
Vol 5 ◽  
pp. 153-160 ◽  
Author(s):  
Guang Yang ◽  
Rong-Hong Jin ◽  
Jun-Ping Geng ◽  
Sheng Ye
Keyword(s):  
Antenna Array ◽  
High Performance ◽  
Feed Network ◽  
Design And Testing
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