Low-Profile, Electrically Small Planar Huygens Source Antenna With an Endfire Radiation Characteristic

Lee, Suhyeon; Shin, Geonyeong; Radha, Sonapreetha Mohan; Choi, Jang-Young; Yoon, Ick-Jae

doi:10.1109/lawp.2019.2892904

Cited by 19 publications

(16 citation statements)

References 14 publications

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“…Comparison between characteristic parameters of our electrically small antenna with most recent work of other groups. In the cases, where the characteristic parameters were not readily denoted in references [13][14][15]18,19,21,22], they were indirectly calculated based on the data in the aforementioned references.…”

Section: Dipole Antenna With Split Ring Resonatormentioning

confidence: 99%

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Efficient and Compact Near-Field Coupled Hybrid Antenna Using a Single Radiating Subwavelength Split-Ring Resonator

Dang

Rahm

2019

Electronics

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Modern applications in the realms of wireless communication and mobile broadband Internet increase the demand for compact antennas with well defined directivity. Here, we present an approach for the design and implementation of hybrid antennas consisting of a classic feeding antenna that is near-field-coupled to a subwavelength resonator. In such a combined structure, the composite antenna always radiates at the resonance frequency of the subwavelength oscillator as well as at the resonance frequency of the feeding antenna. While the classic antenna serves as impedance-matched feeding element, the subwavelength resonator induces an additional resonance to the composite antenna. In general, these near-field coupled structures are known for decades and are lately published as near-field resonant parasitic antennas. We describe an antenna design consisting of a high-frequency electric dipole antenna at f d = 25 GHz that couples to a low-frequency subwavelength split-ring resonator, which emits electromagnetic waves at f SRR = 10.41 GHz. The radiating part of the antenna has a size of approximately 3.2 mm × 8 mm × 1 mm and thus is electrically small at this frequency with a product k · a = 0.5 . The input return loss of the antenna was moderate at − 18 dB and it radiated at a spectral bandwidth of 120 MHz. The measured main lobe of the antenna was observed at 60 ∘ with a − 3 dB angular width of 65 ∘ in the E-plane and at 130 ∘ with a − 3 dB angular width of 145 ∘ in the H-plane.

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Section: Dipole Antenna With Split Ring Resonatormentioning

confidence: 99%

“…In this context, metamaterial inspired antenna designs have gained large interest in recent years [1][2][3][4][5][6][7][8][9]. Electrically small antennas (ESAs) moved into the focus of ongoing research [10][11][12][13][14][15], especially those exploiting split-ring resonators (SRRs) [12,[16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Efficient and Compact Near-Field Coupled Hybrid Antenna Using a Single Radiating Subwavelength Split-Ring Resonator

Dang

Rahm

2019

Electronics

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“…The researchers created a Huygens source antenna which was extremely thin and small yet electrical [30]. Moreover, their source antenna also came with an entire radiation characteristic.…”

Section: Directivitymentioning

confidence: 99%

Effect of Dielectric Substrate on Dipole Antenna Directivity

Africa¹

2019

IJETER

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This paper aimed to determine how the directivity was affected by the dielectric substrate in the dipole antenna. The researchers had to choose different substrates and specific property of antennas in order to produce this study. Given all these substrates, the study focused on which of these would produce the best results that would be beneficial to antennas of a certain function. For this case, it is the directivity of the antenna that is being researched on. Through the use of the Matrix Laboratory (MATLAB) software, the researchers were able to conduct a comparative study on these different substrates to obtain their directivities. After the researchers conducted the simulation, the dielectric substrate, Fused Quartz was found to have the least value in directivity while Air had the highest directivity. Additionally, the researchers were able to deduce that the lower the constant of the material, the higher the directivity of the material. This showed that the relationship between the two variables was inversely proportional.

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“…Various antenna designs with Huygens-like radiation patterns were successfully fabricated and measured, using different approaches to Huygens source realization: e.g. coupling an electric dipole to a current loop [6], using helical antennas [7], using metamaterial-inspired solutions [8] and others. More importantly, several designs of electrically small Huygens antennas in planar multilayered geometries have recently been demonstrated, showing the potential of these types of devices for AoC applications.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, several designs of electrically small Huygens antennas in planar multilayered geometries have recently been demonstrated, showing the potential of these types of devices for AoC applications. In [6] the authors stacked two highperformance laminate substrates containing magnetic and electric dipole elements coupled to a feed. This approach leads to an endfire radiation pattern and a more compact vertical size of the device in comparison to the broadside radiating schemes where one the dipoles must be placed perpendicular to the substrate.…”

Section: Introductionmentioning

confidence: 99%