Bandwidth Enhancement of Uwb Dual-Polarized Antennas

Lorho, Nina; Hubert, William; Lestieux, Sebastien; Chousseaud, Anne; Razban-Haghighi, Tchanguiz

doi:10.2528/pierc16062703

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…The dual linearly polarized radiation pattern is an important requirement for polarization diversity radar applications, as well as to enhance the transmitter/receiver isolation. Moreover, the accuracy of short-range radars is improved with the use of polarization diversity [ 3 ]. To implement this operation mode, it is important to consider first an antenna arm realizing the linear polarization and then add the same arm pattern, but rotated by 90

.…”

Section: Sinuous Antennasmentioning

confidence: 99%

“…The resulting self-complementary four-arm trapezoidal antenna structure exhibited a reduction of the lower cut-off frequency without deteriorating the polarization purity. An approach based on meandering has been proposed for improving the low-frequency radiation characteristics of the sinuous antenna [ 3 ]. In particular, it was implemented using a cosine function modulating the radial coordinate as

where

is the number of meanders in the angular range

and

is relative amplitude of the meandering curve.…”

Section: Sinuous Antennasmentioning

confidence: 99%

“…In addition to the telecommunications, UWB antennas are widely used for a variety of civil, space, biomedical, and military applications [ 3 , 4 , 5 , 6 , 7 ]. They can include UWB pulse radars to detect buried mines or to rescue buried people, as well as the generation of electromagnetic pulse for electromagnetic compatibility and vulnerability tests on electronic and IT equipment [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Sinuous Antenna for UWB Radar Applications

Mescia

Mevoli

Lamacchia³

et al. 2021

Sensors

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In this paper, the recent progress on sinuous antennas is detailed, focusing the attention on the antenna geometry, dielectric structure, and miniaturization techniques. In the first part, we introduce the basic principles of the frequency-independent antenna, in particular the self-complementary and log-periodic geometries, as well as the antenna geometries, all characterized in terms of angles. The operating principles, main advantages, system design considerations, limits, and challenges of conventional sinuous antennas are illustrated. Second, we describe some technical solutions aimed to ensure the optimal trade-off between antenna size and radiation behavior. To this aim, some special modification of the antenna geometry based on the meandering as well as on the loading with dielectric structures are presented. Moreover, the cavity backing technique is explained in detail as a method to achieve unidirectional radiation. Third, we present a new class of supershaped sinuous antenna based on a suitable merge of the 2D superformula and the sinuous curve. The effect of the free parameters change on the antenna arm geometry as well as the performance improvement in terms of directivity, beam stability, beam angle, gain, and radiating efficiency are highlighted.

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.…”

Section: Sinuous Antennasmentioning

confidence: 99%

where

is the number of meanders in the angular range

and

is relative amplitude of the meandering curve.…”

Section: Sinuous Antennasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sinuous Antenna for UWB Radar Applications

Mescia

Mevoli

Lamacchia³

et al. 2021

Sensors

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“…Following the Federal Communications Commission's (FCC) allocation of the frequency band 3.1 GHz to 10.6 GHz for commercial communication applications in 2002 [1], ultra-wideband (UWB) systems have emerged as a significant area of interest in the electronics industry. There are plenty of applications in diverse domains, such as telecommunications, medical, space and military fields [2,3]. Various types of antennas, such as horns, log-periodic antennas, conical antennas, planar monopoles and dipoles, have been extensively studied to achieve wide bandwidths [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Semi-Elliptical UWB Folded Dipole Antenna

Greard,

Himdi,

Lemur

et al. 2023

Electronics

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In this paper, a novel structure of a semi-elliptical folded dipole for ultra-wideband (UWB) receiving applications is discussed. This proposed antenna has a directive radiation pattern resulting in a high gain over the bandwidth. The design uses a planar technology including a microstrip line to slot line transition and optimized curves to obtain a measured impedance bandwidth of 2.3–26 GHz with the condition of S11 < −6 dB (level accepted for receiving antenna) and meets S11 < −10 dB in several bands. Additionally, the simulated gain ranges from 5 dBi to 9.5 dBi across the entire bandwidth with an efficiency of at least 75%. This antenna model offers a reconfiguration capability. The symmetrical feeding used in this antenna creates the directive behavior. Characteristics of this semi-elliptical folded dipole antenna make it suitable for modern wireless communications, such as 5 G around 3.5 GHz, and easy to integrate in antenna arrays (MIMO systems). The four ports of the antenna also make it a candidate for radiation pattern reconfigurability applications reducing in this way the number of elements in network antennas.

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“…However, there are existing communication bands, including Worldwide Interoperability for Microwave Access (WiMAX, 3.3-3.7 GHz) and Wireless Local Area Network (WLAN, 5.15-5.35 GHz and 5.725-5.825 GHz), which can interfere UWB. Hence, the designs about UWB antenna with band-notched function have become a new challenge and research focus [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

A Novel Uwb Antenna With Triple Band-Notches for Wimax and Wlan

Cui¹,

Lv²,

Hao³

et al. 2019

PIER Letters

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By etching a half-wavelength hook-shaped slot on the ground and adding quarterwavelength rectangle-shaped strips in the patch, a novel triple band-notched ultra-wideband (UWB) antenna is proposed. The triple band-notches are used to prevent interferences from existing bands at 3.3-3.9 GHz, 5.15-5.35 GHz, and 5.725-5.825 GHz. Fed by coplanar waveguide, the antenna is printed on a 30 * 30 mm 2 substrate. The parameters affecting antenna performance are simulated and analyzed. The simulated and measured results show that the proposed antenna achieves a wide bandwidth from 3 GHz to 11 GHz with triple band-notches. Radiation patterns and gain are also investigated and analyzed.

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Bandwidth Enhancement of Uwb Dual-Polarized Antennas

Cited by 4 publications

References 9 publications

Sinuous Antenna for UWB Radar Applications

Sinuous Antenna for UWB Radar Applications

A Semi-Elliptical UWB Folded Dipole Antenna

A Novel Uwb Antenna With Triple Band-Notches for Wimax and Wlan

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