Wideband Dual-Polarized Cross-Shaped Vivaldi Antenna

Sonkki, Marko; Sánchez‐Escuderos, Daniel; Hovinen, Veikkò; Salonen, E.; Ferrando‐Bataller, Miguel

doi:10.1109/tap.2015.2415521

Cited by 72 publications

(42 citation statements)

References 16 publications

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“…According to [12], for the conventional Vivaldi antenna, the radius of the stub limits the upper working frequency and in order to get the best impedance matching, the cavity should keep the same radius as the stub. In [12], it offers a fast way to design wideband Vivaldi antenna except that it takes the position of the feeding or coupling point into account.…”

Section: Antenna Designmentioning

confidence: 99%

“…In [12], it offers a fast way to design wideband Vivaldi antenna except that it takes the position of the feeding or coupling point into account. In this paper, based on the theory of the equivalent circuit of Vivaldi antenna [13], the position of the feeding point has been studied.…”

Section: Antenna Designmentioning

confidence: 99%

“…The best result is presented in [12], the isolation is better than 30 dB at the entire function frequency band, and for the two Vivaldi antennas, one is ahead of the other, which avoids the antenna feeding lines overlapping each other. Additionally, the published antennas in [7][8][9][10][11] cannot be used as the dual-polarized antenna array element because the width of antenna is larger than a wavelength corresponding to the higher frequency of the operating band, which will lead to antenna array with grating lobe in higher frequency band.…”

Section: Introductionmentioning

confidence: 99%

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An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

Huang

Yang

et al. 2017

International Journal of Antennas and Propagation

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An X-band dual-polarized Vivaldi antenna with high isolation is proposed. The procedure of this antenna design includes the conventional Vivaldi antenna with regular slot edge (RSE), the dual-polarized Vivaldi antenna with two Vivaldi antennas which have different feeding point positions in a cross-shaped form, and the two Vivaldi antennas with a galvanic contact in soldering point. By applying the RSE, it reduced the dimensions of the Vivaldi antenna and improved its radiation performance. The modified antenna is fabricated and measured. The measured results show that 11 < −10 dB at the entire X-band for the two Vivaldi antennas. The isolation ( 21) between the two feeding ports, which has been improved by applying the different feeding point positions and the galvanic contact in soldering point, is better than 34 dB at X-band. In addition, the cross-polarized discrimination is better than 21 dB for the two Vivaldi antennas, and the measured results also include the gain of two Vivaldi antennas.

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Section: Antenna Designmentioning

confidence: 99%

Section: Antenna Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

Huang

Yang

et al. 2017

International Journal of Antennas and Propagation

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“…International International Journal of Antennas and Propagation Fed by Land M-probe [12] Magnetodielectric dipole [13] Four-point antenna [14] Dual polarized square loop [15] Dual polarized Vivaldi [16] Dual polarized Vivaldi [24] Dual polarized Vivaldi [25] Polarization Dual …”

Section: Matching and Mutual Coupling (Db)mentioning

confidence: 99%

“…Another way to implement a wideband dual polarized antenna is to orientate two Vivaldi antennas into a cross-shape with respect to the antenna center where a galvanic contact is avoided by a small longitudinal gap between antenna elements [23][24][25]. Dual fed Vivaldi antennas do not exist.…”

Section: Introductionmentioning

confidence: 99%

Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz

Sonkki

Myllymäki

Putaala

et al. 2017

International Journal of Antennas and Propagation

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The paper presents a novel dual polarized dual fed Vivaldi antenna structure for 1.7-2.7 GHz cellular bands. The radiating element is designed for a base station antenna array with high antenna performance criteria. One radiating element contains two parallel dual fed Vivaldi antennas for one polarization with 65 mm separation. Both Vivaldi antennas for one polarization are excited symmetrically. This means that the amplitudes for both antennas are equal, and the phase difference is zero. The orthogonal polarization is implemented in the same way. The dual polarized dual fed Vivaldi is positioned 15 mm ahead from the reflector to improve directivity. The antenna is designed for −14 dB impedance bandwidth (1.7-2.7 GHz) with better than 25 dB isolation between the antenna ports. The measured total efficiency is better than −0.625 dB (87%) and the antenna presents a flat, approximately 8.5 dB, gain in the direction of boresight over the operating bandwidth whose characteristics promote it among the best antennas in the field. Additionally, the measured cross polarization discrimination (XPD) is between 15 and 30 dB and the 3 dB beamwidth varies between 68 ∘ and 75 ∘ depending on the studied frequency.

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High‐gain dual‐polarized antenna for ultrawideband applications

Tran

2019

Int J RF Microw Comput Aided Eng

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In this article, a high‐gain and dual‐polarized antenna with UWB operation is proposed. The antenna is composed of two tapered dipoles as radiating elements, which are arranged orthogonally and fed perpendicularly to achieve polarization diversity. A metallic cavity reflector is placed behind the radiator for high gain radiation entire the operating bandwidth. To validate the design method, an antenna prototype is designed, fabricated, and measured. The measured results demonstrate that the proposed design has good performance with |S11| ≤ −10 dB and isolation ≥20 dB over a frequency band 3.2‐8.8 GHz, equivalently to about 93.3%. In addition, unidirectional radiation pattern and broadside gain of from 8.1 to 11.8 dBi are obtained across the operating bandwidth.

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Wideband Dual-Polarized Cross-Shaped Vivaldi Antenna

Cited by 72 publications

References 16 publications

An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

An X-Band Dual-Polarized Vivaldi Antenna with High Isolation

Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz

High‐gain dual‐polarized antenna for ultrawideband applications

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