Miniaturization and Bandwidth Enhancement of Fractal-Structured Two-Arm Sinuous Antenna Using Gap Loading with Meandering Article Swipe
Jung-Hyeon Kim
,
Jongho Keun
,
Tae‐Hoon Yoo
,
Sungjoon Lim
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/fractalfract7120841
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/fractalfract7120841
A sinuous antenna is a frequency-independent antenna known for its wide bandwidth and consistent gain, which makes it valuable in broadband applications such as ultrawideband (UWB) radar and ground-penetrating radar (GPR). However, sinuous antennas tend to be rather large. Consequently, numerous studies have explored miniaturization methods, with the gap-loading method emerging as a prominent approach. Unfortunately, it is still difficult to achieve broad bandwidths for conventional miniaturized sinuous antennas. In this paper, we use a novel approach incorporating a meander shape into the sinuous curve and employing gap loading with meandering. This innovative technique results in the development of a fractal-structured two-arm sinuous antenna characterized by an ultra-compact size and significantly expanded bandwidth. Adding a meander line in the outermost part maximizes the capacitance, thereby enhancing the gap-loading effect and minimizing the overall size of the sinuous antenna. In addition, the introduction of an inner meander line increases the inductance, contributing to a further expansion of the antenna’s bandwidth. For example, the electrical length of the antenna without the meander line is 0.552 × 0.552 × 0.052 λg3, while the electrical length of the antenna with the meander line is only 0.445 × 0.445 × 0.036 λg3, i.e., 19.4% smaller. The antenna lacking the outermost meander line exhibits a 10 dB impedance bandwidth, spanning from 0.74 to 10.53 GHz. In contrast, the antenna featuring the outermost meander line has a 10 dB impedance bandwidth, extending from 0.51 to 10.72 GHz, which results in a remarkable enhancement in the fractional bandwidth (by 8.1%). Hence, the proposed antenna design is a good candidate for broadband applications that require miniaturization.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/fractalfract7120841
- https://www.mdpi.com/2504-3110/7/12/841/pdf?version=1701089443
- OA Status
- gold
- Cited By
- 2
- References
- 36
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4389057421
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4389057421Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/fractalfract7120841Digital Object Identifier
- Title
-
Miniaturization and Bandwidth Enhancement of Fractal-Structured Two-Arm Sinuous Antenna Using Gap Loading with MeanderingWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
-
2023-11-27Full publication date if available
- Authors
-
Jung-Hyeon Kim, Jongho Keun, Tae‐Hoon Yoo, Sungjoon LimList of authors in order
- Landing page
-
https://doi.org/10.3390/fractalfract7120841Publisher landing page
- PDF URL
-
https://www.mdpi.com/2504-3110/7/12/841/pdf?version=1701089443Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
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https://www.mdpi.com/2504-3110/7/12/841/pdf?version=1701089443Direct OA link when available
- Concepts
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Miniaturization, Meander (mathematics), Bandwidth (computing), Monopole antenna, Radiation pattern, Dipole antenna, Physics, Acoustics, Antenna (radio), Electrical engineering, Electronic engineering, Engineering, Telecommunications, Geometry, MathematicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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2Total citation count in OpenAlex
- Citations by year (recent)
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2024: 2Per-year citation counts (last 5 years)
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36Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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