A Compact Tri-Band Frequency Reconfigurable Antenna for Lte/Wi-Fi/Its Applications

Bharadwaj, Shreyas S.; Sipal, Deepika; Yadav, Dinesh; Koul, Shiban K.

doi:10.2528/pierm20011904

Cited by 29 publications

(14 citation statements)

References 13 publications

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“…Multiband elliptical patch fractal with a defective ground plane is proposed in [14]. Frequency reconfigurable multi-band antennas have been reported [15][16][17]. A reconfigurable planar inverted F shape antenna (PIFA) with capacitive loaded slots is designed in [15].…”

Section: Introductionmentioning

confidence: 99%

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A Circular Sector With an Inverted L Shaped Monopole Antenna for Tri-Band Applications

Khade¹,

Trimukhe²,

Jagtap³

et al. 2022

PIER C

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In this paper, a quarter circular sector with an inverted L shaped monopole antenna for tri-band applications is proposed. The antenna is designed from a U shaped ultra-wideband (UWB) antenna. The number of higher-order modes, each with wide bandwidth, gets excited in a monopole, which electromagnetically couple to provide UWB. In the proposed tri-band antenna the electromagnetic coupling between higher-order modes is reduced by selectively removing the symmetrical portion and decreasing the thickness of the UWB radiator. An inverted L strip is added to a quarter circular sector, and a similarly shaped parasitic element is placed close to the radiator to achieve the desired tri-band. The antenna provides S 11 ≤ −10 dB over 2.1-2.5 GHz, 5.0-5.6 GHz and 8.4-9.0 GHz which covers 3G, Wi-Fi, LTE, Bluetooth, WLAN, and X-band applications. The antenna offers nearly omnidirectional radiation pattern in the lower band and directional radiation pattern in the other two bands. The prototype antenna is fabricated on a 0.147λ 0 × 0.22λ 0 FR4 substrate, where λ 0 is the free-space wavelength corresponding to 2.1 GHz. The measured results agree with simulation ones.

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Section: Introductionmentioning

confidence: 99%

“…A reconfigurable planar inverted F shape antenna (PIFA) with capacitive loaded slots is designed in [15]. Slots and strips are introduced in a monopole, and reconfigurability is achieved by using PIN diodes in order to enhance the device utility [16,17].…”

Section: Introductionmentioning

confidence: 99%

A Circular Sector With an Inverted L Shaped Monopole Antenna for Tri-Band Applications

Khade¹,

Trimukhe²,

Jagtap³

et al. 2022

PIER C

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“…An F-shaped frequency reconfigurable antenna is presented in [ 22 ] which covers different bands which include the WLAN, Wi-MAX, Wi-Fi, and GSM band. In [ 23 ] a tri-band frequency reconfigurable antenna is presented for LTE/WiFi)/ITS applications. Switching is done by two PIN diodes loaded on the ground plane.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Analysis of Multiband Frequency Reconfigurable Antenna for 5G and Sub-6 GHz Wireless Communication

Dildar¹,

Althobiani

Ahmad³

et al. 2020

Micromachines

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A low-profile frequency reconfigurable monopole antenna operating in the microwave frequency band is presented in this paper. The proposed structure is printed on Flame Retardant-4 (FR-4) substrate having relative permittivity of 4.3 and tangent loss of 0.025. Four pin diode switches are inserted between radiating patches for switching the various operating modes of an antenna. The proposed antenna operates in five modes, covering nine different bands by operating at single bands of 5 and 3.5 GHz in Mode 1 and Mode 2, dual bands (i.e., 2.6 and 6.5 GHz, 2.1 and 5.6 GHz) in Mode 3 and 4 and triple bands in Mode 5 (i.e., 1.8, 4.8, and 6.4 GHz). The Voltage Standing Waves Ratio (VSWR) of the presented antenna is less than 1.5 for all the operating bands. The efficiency of the designed antenna is 84 % and gain ranges from 1.2 to 3.6 dBi, respectively, at corresponding resonant frequencies. The achieve bandwidths at respective frequencies ranges from 10.5 to 28%. The proposed structure is modeled in Computer Simulation Technology microwave studio (CST MWS) and the simulated results are experimentally validated. Due to its reasonably small size and support for multiple wireless standards, the proposed antenna can be used in modern handheld fifth generation (5G) devices as well as Internet of Things (IoT) enabled systems in smart cities.

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“…Some of them are RF-MEMS switches, varactor diode, and PIN diodes. Antennas that combine two or more independent antennas operating in different frequency bands excited with single feed with efficient switching between two more bands have been presented in [2][3][4]. There are various technical challenges in antenna designing systems due to the increase in the number of frequency bands, congestion in spectrum,,interference, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In the literature from 2017 to 2020, various antennas with frequency diversity between two or more bands have also been discussed. Bharadwaj et al [2] proposed a tri-band wine glass shaped reconfigurable patch antenna for LTE and WiFi applications with an overall dimension of 30 mm × 30 mm. The multiple bands have been obtained by inserting slots in the radiating patch and ground, and PIN diodes have been used to switch the bands from one to another.…”

Section: Introductionmentioning

confidence: 99%

A Compact Frequency Reconfigurable Printed Antenna for Wlan, Wimax Multiple Applications

Singh¹,

Sharma²,

Goswami³

2020

PIER C

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In this research work a compact patch antenna which is reconfigurable for frequency is presented. Frequency reconfigurability is achieved by the use of two PIN diodes. Antenna operates over four frequencies, i.e., for WiMax (4.94 GHz), WLAN (5.35), and C-Band (6.25 and 6.83 GHz) applications. The overall dimension of antenna is 25 × 25 mm 2 , and an FR-4 substrate having dielectric constant of 4.4 and thickness 1.6 mm is used to fabricate the prototype of the proposed antenna. Different resonant frequencies are obtained by cutting a-slot and a U-slot in radiating patch and by modifying ground slot with a modified slotted structure. One diode is used in ground, and another PIN diode is used on the patch at an appropriate position. Maximum gain of 3.91 dBi and stable radiation characteristics and VSWR < 2 are obtained at the operating bands in simulation and measurement. The antenna elicits its novelty through compactness, portability for communication devices through combination of only two PIN diode switching in cellphones, tablets PCs, and other satellite communication devices operating in C-band as per FCC standard. A prototype of antenna is fabricated, and the measured and simulated parameters are in good agreement.

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A Compact Tri-Band Frequency Reconfigurable Antenna for Lte/Wi-Fi/Its Applications

Cited by 29 publications

References 13 publications

A Circular Sector With an Inverted L Shaped Monopole Antenna for Tri-Band Applications

A Circular Sector With an Inverted L Shaped Monopole Antenna for Tri-Band Applications

Design and Experimental Analysis of Multiband Frequency Reconfigurable Antenna for 5G and Sub-6 GHz Wireless Communication

A Compact Frequency Reconfigurable Printed Antenna for Wlan, Wimax Multiple Applications

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