Miniaturized Four-Arm Log-Periodic Toothed Antenna With Wide Bandwidth

Donghyun Kim; Chan Yeong Park; Young Joong Yoon

doi:10.1109/LAWP.2022.3144694

Miniaturized Four-Arm Log-Periodic Toothed Antenna With Wide Bandwidth

Donghyun Kim, Chan Yeong Park, Young Joong Yoon

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

An improved method of wideband performance is demonstrated by being applied to a miniaturized four-arm log-periodic toothed antenna with an integrated balun. The required minimum length of the integrated balun is reduced through the input impedance reduction structure on thin dielectrics with a low relative dielectric constant. In addition, destructive currents arising from the combination of the antenna structure and miniaturization structure are solved by modeling them as an equivalent circuit structure from an impedance perspective. The proposed antenna represents a voltage standing wave ratio of less than 2:1 in the 1.25-18 GHz bandwidth range and has a realization gain of more than 2 dBi in the overall operating band with a diameter of 0.325 mathbf{ lambda}_{ mathbf {L}}.

Original language	English
Pages (from-to)	745-749
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	4
DOIs	https://doi.org/10.1109/LAWP.2022.3144694
Publication status	Published - 2022 Apr 1

Bibliographical note

Publisher Copyright:
© 2002-2011 IEEE.

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/LAWP.2022.3144694

Cite this

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abstract = "An improved method of wideband performance is demonstrated by being applied to a miniaturized four-arm log-periodic toothed antenna with an integrated balun. The required minimum length of the integrated balun is reduced through the input impedance reduction structure on thin dielectrics with a low relative dielectric constant. In addition, destructive currents arising from the combination of the antenna structure and miniaturization structure are solved by modeling them as an equivalent circuit structure from an impedance perspective. The proposed antenna represents a voltage standing wave ratio of less than 2:1 in the 1.25-18 GHz bandwidth range and has a realization gain of more than 2 dBi in the overall operating band with a diameter of 0.325 mathbf{ lambda}_{ mathbf {L}}.",

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AB - An improved method of wideband performance is demonstrated by being applied to a miniaturized four-arm log-periodic toothed antenna with an integrated balun. The required minimum length of the integrated balun is reduced through the input impedance reduction structure on thin dielectrics with a low relative dielectric constant. In addition, destructive currents arising from the combination of the antenna structure and miniaturization structure are solved by modeling them as an equivalent circuit structure from an impedance perspective. The proposed antenna represents a voltage standing wave ratio of less than 2:1 in the 1.25-18 GHz bandwidth range and has a realization gain of more than 2 dBi in the overall operating band with a diameter of 0.325 mathbf{ lambda}_{ mathbf {L}}.

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Miniaturized Four-Arm Log-Periodic Toothed Antenna With Wide Bandwidth

Abstract

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