scholarly journals Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5065
Author(s):  
Xiuye Liang ◽  
Weishuang Yin ◽  
Ang Chen ◽  
Zhe Zhang ◽  
Jianping Zeng ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Array Antenna ◽  
Cross Polarization ◽  
Matching Process ◽  
Compact Size ◽  
Tightly Coupled ◽  
Infinite Array ◽  
Polarization Characteristics ◽  
The Cross ◽  
Uwb Applications

A stripline-fed tightly coupled array antenna with compact size, large scan volume and low cross-polarization characteristics is proposed for ultrawideband (UWB) applications. Simple impedance-matching process is realized by using parallel dual dipoles. Meanwhile, the parallel symmetrical radiating structures minimize the cross-polarization field components dramatically. The mitigation of various undesired resonances is studied in detail. An infinite array is designed to achieve 3:1 bandwidth (6−18 GHz) when scanning ±60∘ in the E-/D-planes (VSWR < 2.5) and H-plane (VSWR < 3.5). The cross-polarization levels remain below −29 dB at broadside. A 16 × 16 prototype is fabricated to demonstrate the design. The measured results are consistent well with the simulated ones. The overall size of the prototype at the lowest operating frequency is 3×3×0.4λ03 (15×15×2cm3). Due to its wide bandwidth, good electronic scan performance and compact size, the proposed antenna array is a good candidate for modern wireless platforms.

Investigation of the cross-polarization characteristics of an antenna by means of microwave holography

1973 ◽  
Vol 16 (1) ◽  
pp. 119-121
Author(s):  
V. A. Varganov ◽  
D. A. Dmitrenko ◽  
L. V. Dmitrenko ◽  
N. A. Dugin ◽  
L. K. Ivannikova ◽  
...  
Keyword(s):  
Cross Polarization ◽  
Polarization Characteristics ◽  
The Cross

Compact stepped slot antenna for ultra-wideband applications

2021 ◽  
pp. 1-7
Author(s):  
B. Hammache ◽  
A. Messai ◽  
I. Messaoudene ◽  
T. A. Denidni
Keyword(s):  
Radiation Pattern ◽  
Impedance Matching ◽  
Ultra Wideband ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Back Side ◽  
Compact Size ◽  
Measurement Results ◽  
Operating Bandwidth ◽  
Uwb Applications

Abstract In this paper, a compact stepped slot antenna for ultra-wideband (UWB) applications is proposed. A very small size and UWB bandwidth operation are achieved by integrating a stepped slot in the back side of the antenna. This stepped slot is excited by using a 50 Ω-feed line in the top side of the antenna. The antenna is characterized by an impedance bandwidth between 3.05 GHz and more than 12 GHz. The dimensions of the antenna are 17 mm × 8 mm × 1.27 mm, which leads to the most compact size compared with other works in the literature. The integrated stepped slot is divided into additional elementary slots, where each elementary slot has a matching point. Adding these elementary slots allows to increase further the operating bandwidth. The radiation pattern of the compact stepped slot antenna is omnidirectional in the H-plane and bidirectional in the E-plane. The measurement results agree well with the simulated ones in terms of impedance matching and radiation pattern.

A compact rhombus-shaped slot antenna fed by microstrip-line for UWB applications

2015 ◽  
Vol 9 (2) ◽  
pp. 403-409 ◽  
Author(s):  
Richa Chandel ◽  
Anil Kumar Gautam ◽  
Binod Kumar Kanaujia
Keyword(s):  
Microstrip Line ◽  
Impedance Matching ◽  
Wide Band ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Antenna Performance ◽  
Compact Size ◽  
Feeding Structure ◽  
Uwb Applications ◽  
Novel Design

In this paper, a novel design and experimental study of microstrip-line-fed rhombus-shaped slot antenna is presented. The proposed antenna shows an ultra-wide band (UWB) operation with good impedance matching by choosing appropriate rhombus-shaped slot and feeding structure. The proposed antenna has a simple structure and compact size as compared with many reported antennas. The measured results validate the design and the impedance bandwidth can operate from 2.78 to 12.92 GHz (10.14 GHz), which evidently covers entire UWB (3.1–10.6 GHz). Furthermore, the key parameters of the antenna are also discussed to study their persuade on the antenna performance.

scholarly journals A New CPW-fed Patch Antenna for UWB Applications

2017 ◽  
pp. 75-78 ◽  
Author(s):  
Purnima Sharma ◽  
Santosh Kumar Jha ◽  
Partha Pratim Bhattacharya
Keyword(s):  
Radiation Pattern ◽  
Patch Antenna ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Impedance Matching ◽  
Compact Size ◽  
Uwb Applications

In this paper, the design and analysis of a compact size coplanar waveguide (CPW)-fed antenna for ultrawideband (UWB) applications is presented. The antenna has a compact size of 20×20×1.1 .5 .mm and provides a good impedance matching over the entire bandwidth of 3.2–14.3 GHz. The characteristics parameters, i.e. return loss, VSWR and radiation pattern, are analyzed using HFSS 11.0 software.

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