A reconfigurable antenna using tuning element for LTE applications

Lee, Won Woo; Yoon, Cheol

doi:10.1002/mop.28892

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The multiplexer is used to help direct the RF signals to and from different antenna elements [19][20][21][22][23], whose central part is an SP4T RF switch, HMC182S14 from Analogue Device. A floating ground technique, shown in figure 4(a), is implemented in order to operate the RF switch in positive TTL logics instead of its original negative TTL logics.…”

Section: Sp4t Multiplexermentioning

confidence: 99%

Flexible circuits and materials for large-area UHF RFID reader antenna systems

Xiaotian¹,

Sidén²,

Andersson³

2018

Flex. Print. Electron.

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RF electronics commonly incorporate PCB materials with low loss tangents, which limits its use for large-area applications due to its high cost. This work verifies one alternative solution how nonconventional flexible circuit materials can be used to manufacture large functional surfaces for RFbased applications. Laminated Al foils are used for conducting layers and a flexible foam material is used for substrate. An RFID reader system has been developed to demonstrate the functionality, comprising of eight microstrip antenna elements arranged in a SP4T switching structure covering an area of 1.2 m×0.6 m. Each antenna element is individually addressable with aid of distributed digital and analogue multiplexer circuitry and it is shown how these components can be soldered directly onto the Al conductors. The constructed system shows good RF performance, both with regards to the materials and to the interconnections with the distributed multiplexer circuitry. It can perform farfield RFID tag reading above its surface without dead zones and the system characterization implies that the concept can be further expanded to cover geometrical areas up to 1000 square meters.

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Section: Sp4t Multiplexermentioning

confidence: 99%

Flexible circuits and materials for large-area UHF RFID reader antenna systems

Xiaotian¹,

Sidén²,

Andersson³

2018

Flex. Print. Electron.

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“…The ELC provides negative permeability characteristics due to its stop band behavior. Since the planar inverted F antenna (PIFA) was analyzed in compact area, this can be greatly utilized in mobile communication [19]. The frequency bands in the range from 1.71 to 2.69 GHz were referred for LTE communication.…”

Section: Introductionmentioning

confidence: 99%

Design of CPW Antenna for Future Wireless Application

Monisha¹,

Surendar²

2019

International Journal of Advanced Research in Computer and Comm

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A hexagonal shaped Co-Planar Waveguide (CPW) fed antenna is proposed with Electric Field Coupled Resonator (ELC) structure for LTE application. The antenna consists of hexagonal slot in the patch with meta-material structure at the centre. Using ELC structure, the impedance matching is occurred efficiently. The frequency band covered by this proposed antenna is 2.6GHz with the return loss of-23dB. The total size of the antenna is. The dielectric constant used for this antenna is FR4 substrate. The optimal VSWR and Radiation pattern characteristics are obtained for this frequency band. The proposed antenna is designed and simulated using High Frequency Structure Simulator (HFSS).

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Design and Analysis of Tri-Band Monopole Ultra Wide Band (Uwb) Antenna

Vijetha

Barath

2023

Telecom Rad Eng

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A portable, low-cost, simple monopole antenna is designed, fabricated, and tested, and measured results compared with simulations. Dual-band characteristics at 2.0-2.6 GHz and 3.1-10.6 GHz are obtained by semi-annular shaped radiation patch. Band-notched features at 2.0-3.0 GHz and 5.15-5.825 GHz obtained by providing L-shape slots, rectangular slots in ground plane, and a small ring slot on semi-annular shaped radiation patch, improve the band-notch characteristics which effect the bandwidth of resonant frequencies. The monopole ultra wide band (UWB) antenna was built on an FR4 substrate with a dielectric constant of 4.4 and a size of 50 mm × 24 mm × 1.6 mm. The 3D high-frequency (EM) simulation software (HFSS) is used to simulate and optimize the proposed antenna structure. The measured results of the designed antenna with different dimensions of slots have produced S11 < -10 dB over the three bands (2.0-2.6 GHz, 3.1-5.15 GHz, and 5.8-11.4 GHz) without a circular slot, by adjusting a circular slot radius on a semi-annular structure that improves the band-notch characteristics. The monopole UWB antenna exhibits stable gain and provides omnidirectional radiation pattern over the desired bands.

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A reconfigurable antenna using tuning element for LTE applications

Cited by 3 publications

References 5 publications

Flexible circuits and materials for large-area UHF RFID reader antenna systems

Flexible circuits and materials for large-area UHF RFID reader antenna systems

Design of CPW Antenna for Future Wireless Application

Design and Analysis of Tri-Band Monopole Ultra Wide Band (Uwb) Antenna

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