Antenna Gain Enhancement Using a Holey Superstrate

Kim, Jae Hee; Ahn, Chi‐Hyung; Bang, J.-K.

doi:10.1109/tap.2016.2518650

Cited by 90 publications

(36 citation statements)

References 9 publications

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“…If the superstrate is placed closer to the antennas, it is observed that the gain of the dipole is reduced. Compared to the superstrate design in [23], the proposed design is much more compact in terms of distance from the patch for a minimal gain variation between the antennas. The electric field distributions before and after the unit-cell loading are shown in Fig.…”

Section: Design and Analysis Of Unit-cellmentioning

confidence: 99%

Gain Equalized Three Antenna Pattern Diversity Module for Wlan Access Points

Swapna¹,

Karthikeya²,

Koul³

et al. 2019

PIER C

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This paper demonstrates a three-port coaxial fed antenna system for wireless local area network (WLAN) access points, consisting of two dipoles and a patch, radiating at 5.2 GHz with impedance bandwidth of 150 MHz. The antennas are designed for pattern diversity in the end-fire and broadside orientation with an individual gain of 4.5 dBi, which is further enhanced to 6 dBi after integrating with unit-cell structures. The gain enhancement for individual antennas is achieved by strategically integrating transmission type and reflective type sub-wavelength structures for patch and dipoles, respectively. The realized ground plane is shared among the three antennas. The measured results show that the return loss of the antennas is unaffected by the unit-cell loading and has an isolation of less than 26 dB throughout the band and across the ports for a port-to-port distance of 0.25λ.

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Section: Design and Analysis Of Unit-cellmentioning

confidence: 99%

Gain Equalized Three Antenna Pattern Diversity Module for Wlan Access Points

Swapna¹,

Karthikeya²,

Koul³

et al. 2019

PIER C

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show abstract

“…However, to meet practical applications, microstrip antennas are expected to achieve higher gain and radiation efficiency. To enhance the gain for antenna, different approaches have been reported, for example: DGS [1,2], loading method [3], superstrate [4,5], reflective surface [6], and metamaterial [7,8]. Although superstrate and some other methods considerably improve gain for antenna, they increase the complexity and occupied space.…”

Section: Introductionmentioning

confidence: 99%

Gain Enhancement in Mimo Antennas Using Defected Ground Structure

Nguyen¹

2019

PIER M

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This paper investigates a low-profile Multiple Input Multiple Output (MIMO) antenna with enhanced gain based on Defected Ground Structure (DGS). The proposed antenna consists of two sets of four elements (2 × 2), and it is yielded at the central frequency of 5.5 GHz for Wireless Local Area Network (WLAN) applications. Being on RT5880 with height of 1.575 mm, the overall dimensions of MIMO antenna and single array are 145 × 88 × 1.575 mm 3 and 75 × 82 × 1.575 mm 3 , respectively. To get high gain and low mutual coupling for antenna, a Defected Ground Structure (DGS) is proposed and integrated on ground plane. At 5.3 GHz, the gain of antenna achieves approximately 9.5 dBi while mutual coupling level is under −20 dB. Besides, the MIMO antenna witnesses a radiation efficiency of 93%. The measurement results are compared to simulation ones to verify the performance of the proposed antenna.

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“…In the reported literature, a number of FSS configurations are reported for performance, in particular gain enhancement of antennas. In Reference , a superstrate with vias is designed to improve gain of a resonant patch antenna having 5.65‐5.87 GHz band. A truncated dumbbell‐shaped FSS superstrate screen is reported in Reference .…”

Section: Introductionmentioning

confidence: 99%

An FSS‐employed UWB antenna system for high‐gain portable devices

Saleem

Bilal

Shabbir

et al. 2019

Micro & Optical Tech Letters

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In this article, a high‐gain antenna for ultra‐wideband (UWB) communication is presented and experimentally validated. Gain enhancement is achieved by employing a frequency selective surface (FSS) screen as a superstrate. The proposed antenna‐FSS arrangement is less complex and realized on a low‐profile FR‐4 laminate. The antenna comprises a circular radiator that is enclosed in a triangular shaped arrangement of slots along with a narrow feed‐line. Lengths and widths of the different sections along with feed are optimized to achieve an ultra‐wide impedance bandwidth. The employed superstrate is an array of modified square shaped FSS (MS‐FSS). Full wave analysis validates its effectiveness in achieving at least 5 dBi gain enhancement of the UWB antenna while maintaining wideband impedance match. Moreover, the antenna behavior is also analyzed by varying periodicity and the distance between superstrate and the proposed slot antenna. This antenna‐FSS arrangement is a suitable candidate for high‐gain UWB portable devices.

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Antenna Gain Enhancement Using a Holey Superstrate

Cited by 90 publications

References 9 publications

Gain Equalized Three Antenna Pattern Diversity Module for Wlan Access Points

Gain Equalized Three Antenna Pattern Diversity Module for Wlan Access Points

Gain Enhancement in Mimo Antennas Using Defected Ground Structure

An FSS‐employed UWB antenna system for high‐gain portable devices

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