A dual-band half-mode substrate integrated waveguide-based antenna for WLAN/WBAN applications

Chaturvedi, Divya; Raghavan, S.

doi:10.1002/mmce.21239

Cited by 33 publications

(22 citation statements)

References 23 publications

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“…Table 2 shows the comparison of the proposed antenna with previously reported antennas. The size of the proposed antenna is small compared to the antennas proposed in [11][12][13]. Also, there is an improvement in the gain in comparison with reference antennas.…”

Section: Dual Band Hmsiw Antennamentioning

confidence: 97%

Dual Band Half Mode Siw Semi Circular Cavity Back Slot Antenna

Jagadeesh¹,

Sudhakar²

2019

PIER Letters

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In this paper, a half-mode substrate integrated waveguide (HMSIW) semi-circular cavity backed antenna, using two higher order modes (TM 210 and TM 020), has been proposed for dual-band operation. A semicircular slot is engraved on the top of the HMSIW structure forming a cavity that is fed by co-axial feeding to get impedance matching with the line. The theoretical operation of TM 210 and TM 020 modes is explained using the simulation tool. The antenna parameters such as reflection coefficient, gain, and radiation patterns have been measured for the fabricated antenna. The antenna radiates in two bands, in which the first band center frequency is 8.5 GHz, and the second band center frequency is 10.6 GHz. Peak gains at boresight direction are around 7.5 dBi and 6 dBi, respectively.

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Section: Dual Band Hmsiw Antennamentioning

confidence: 97%

Dual Band Half Mode Siw Semi Circular Cavity Back Slot Antenna

Jagadeesh¹,

Sudhakar²

2019

PIER Letters

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“…The sides walls of the cavity are realized using metallized via‐holes and the SIW guidelines for diameter and pitch distance ( d / p ≥ 0.5 and

\frac{true}{d}

d / λ o ≤ 0.1) of the metallic vias have been considered to avoid the leakage of energy. The dimensions of the cavity have been calculated from the empirical Equation shown below

f_{italicmn 0} = \frac{c}{2 \sqrt{ε_{r}}} \sqrt{{(\frac{m}{L})}^{2} + {(\frac{n}{W})}^{2} + {(\frac{p}{h})}^{2}}

…”

Section: Design and Working Mechnismmentioning

confidence: 99%

“…The dimensions of the cavity have been calculated from the empirical Equation (1) shown below. [19][20][21]…”

Section: Antenna Configurationmentioning

confidence: 99%

SIW cavity‐backed 24 ° inclined‐slots antenna for ISM band application

Chaturvedi

2020

Int J RF Microw Comput Aided Eng

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In this article, a novel resonant series slot linearly polarized antenna is realized using substrate integrated waveguide (SIW) technology for industrial scientific medical radio band (ISM) at 5.8 GHz. The proposed antenna consists of two 24° inclined slots and two metallic vias to produce alternate inductive and capacitive loads. The rectangular slots are introduced at the top metallic surface at an angle of 24° from the Y‐axis to excite a hybrid mode (TE110 + TE120) near to the modified cavity mode TE120. The resonant slots are excited with the help of an inset microstrip feedline which retain its planar integrability. The slots are excited to resonate in the TE120 mode at 5.8 GHz. To enhance the bandwidth, the location of two shorting vias are optimized in proximity to the slots. These vias help to couple the hybrid mode and the cavity modes in the desired frequency band, which leads to enhancement in the bandwidth significantly. The proposed geometry is fabricated and experimentally verified. The measured and simulated results depict a good co‐relation which show measured −10 dB fractional bandwidth of 5.2% with a maximum gain of 7.15 dBi and the front to back ratio better than 15 dB at 5.8 GHz.

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“…Although it has several advantages, the existing SIW based antennas for WLAN applications are not compact. By using half mode SIW technique miniaturization is attained in antennas …”

Section: Introductionmentioning

confidence: 99%

A double line SIW cavity backed antenna for WLAN applications

Swaminathan¹,

Rokhini²

2019

Int J RF Microw Comput Aided Eng

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A compact double line substrate integrated waveguide (DLSIW) cavity backed antenna is realized using half mode SIW technology for WLAN applications. The existing single line SIW antennas for WLAN applications have low gain and less efficiency. To overcome this limitation, DLSIW structure is proposed. The new DLSIW structure simultaneously achieves better gain, radiation efficiency, and good front to back ratio (FTBR) with compact size. To improve the FTBR, ground extension is made. The size reduction of the proposed design is implemented with half mode SIW topology. The gain and efficiency improved new DLSIW antenna is fabricated using FR4 material and it resonates at 5.27GHz WLAN frequency. The size of antenna is 44 mm × 18.75 mm × 1.6 mm and it has the gain of 5.824 dB. The radiation efficiency and FTBR of the antenna are 69.13% and 13.65 dB, respectively. The design is experimentally tested and compared with earlier WLAN antennas. There is a better accordance between simulated and measured results.

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A dual-band half-mode substrate integrated waveguide-based antenna for WLAN/WBAN applications

Cited by 33 publications

References 23 publications

Dual Band Half Mode Siw Semi Circular Cavity Back Slot Antenna

Dual Band Half Mode Siw Semi Circular Cavity Back Slot Antenna

SIW cavity‐backed 24 ° inclined‐slots antenna for ISM band application

A double line SIW cavity backed antenna for WLAN applications

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