Impedance Matching Techniques for Microstrip Patch Antenna

Sharma, Sonia; Tripathi, C. C.; Rishi, Rahul

doi:10.17485/ijst/2017/v10i28/97642

Cited by 39 publications

(15 citation statements)

References 25 publications

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“…Transmission line model is first used for determining the dimensions of the patches for the antennas of 5.4, 3.6, and 2.45 GHz. Then microstrip feed line of the 5.4 GHz antenna is determined based on quarter wavelength transformer given in Reference . The conducting layers of copper for 5.4, 3.6, and 2.45 GHz antenna patches are appropriately concatenated by leaving a 1 mm gap for the placement of additional circuit elements used for combination of two patches as well as for impedance matching.…”

Section: The Proposed Reconfigurable Antenna Designmentioning

confidence: 99%

“…First, the Z a value is calculated by using feed line length ( d f ), wavelength ( λ ) of 3.6 GHz antenna, microstrip feed line impedance ( Z 0 ) of 5.4 GHz antenna and 50 Ω input impedance. Then, the patch length of 3.6 GHz antenna ( d 2 ) is put into Equation together with the Z a value and this equation is solved for W 2 . Finally, a new Z a value is calculated for this patch from Equation , and again Equation is used for determining W 3 .

Z_{in} ((), d_{normalf}) = Z_{0} ([], \frac{Z_{normala} + {italicjZ}_{0} \tan (\frac{2 π}{λ} d_{normalf})}{Z_{0} + {italicjZ}_{normala} \tan (\frac{2 π}{λ} d_{normalf})})

Z_{a} = 90 \frac{ε_{normalr}^{2}}{ε_{r} - 1} {(\frac{d}{W})}^{2}

where d is length of the antenna, W is width of the antenna.…”

Section: The Proposed Reconfigurable Antenna Designmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and validation of a new reconfigurable patch antenna through equivalent lumped circuit‐based design for minimum tuning effort

Polat

Geyikoğlu

Çavuşoğlu

2020

Micro & Optical Tech Letters

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This study presents a modeling of a new reconfigurable patch antenna with equivalent lumped circuit. Instead of intuitive approaches, including structural changes used in the literature, the proposed reconfigurable antenna design is based on minimum tuning effort using only capacitance adjustments. The proposed design resolves impedance mismatch problem, which occurs due to the nature of using several frequencies by only capacitance adjustments rather than physical structure adjustments. Reconfigurable patch antenna for 2.45 GHz (Wi‐Fi), 3.6 GHz (Wi‐max and 5G), 5.4 GHz (WLAN and 5G) was considered for novel design strategy. A complete equivalent circuit model is configured and validated through AWR software. Full wave analysis of the proposed antenna is performed using CST software. A prototype of the proposed antenna is also fabricated on a FR4 substrate with the dimensions of 48.19 x 38.36 x 1.53 mm3 and measured to validate the full wave analysis and circuit theory solution results. It is shown that the equivalent circuit model, full wave analysis, and measurement results are in good agreement.

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Section: The Proposed Reconfigurable Antenna Designmentioning

confidence: 99%

Z_{in} ((), d_{normalf}) = Z_{0} ([], \frac{Z_{normala} + {italicjZ}_{0} \tan (\frac{2 π}{λ} d_{normalf})}{Z_{0} + {italicjZ}_{normala} \tan (\frac{2 π}{λ} d_{normalf})})

Z_{a} = 90 \frac{ε_{normalr}^{2}}{ε_{r} - 1} {(\frac{d}{W})}^{2}

where d is length of the antenna, W is width of the antenna.…”

Section: The Proposed Reconfigurable Antenna Designmentioning

confidence: 99%

Modeling and validation of a new reconfigurable patch antenna through equivalent lumped circuit‐based design for minimum tuning effort

Polat

Geyikoğlu

Çavuşoğlu

2020

Micro & Optical Tech Letters

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“…We select a patch antenna, as this is a low profile and low cost antenna with a directive radiation pattern that can easily be integrated in the handle of a cooking pot. Impedance matching for microstrip patch antennas is discussed in [39]. We first simulate the antenna via finite difference time domain (FDTD) simulations in Sim4Life and optimise the antenna characteristics such as the radiation pattern and S 11 scattering parameter near the metallic pot.…”

Section: Narrowband Antennamentioning

confidence: 99%

Channel modelling of a cooker hob environment for smart kitchens

Beelde

Podevijn

Tanghe

et al. 2020

IET Microwaves, Antennas & Propagation

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This study presents a study on the radio channel modelling for realising reliable wireless communication in kitchen environments. The study allows optimising the wireless communication between a cooking pot and the kitchen hood in a smart home's kitchen. The delay, angular and path loss characteristics of the wireless channel are obtained from channel sounding measurements. The authors compared path loss at frequencies 868 MHz, 2.4 and 5.25 GHz. The influence of the metallic pot on the antenna characteristics is assessed by measuring the radiation pattern of the antenna. The antenna gain increases when the antenna is placed next to the metallic pot. Based on the channel sounding measurements and antenna model, a two‐ray channel model is proposed consisting of one line‐of‐sight component and a component caused by reflections on the hood and hob. For the validation of the proposed model, a narrowband patch antenna is designed and used for measurements in a real kitchen. The validation confirms the general applicability of the proposed method. The results of the joint channel and antenna model are used in link budget calculations. Via the link budget, the minimum required TX power to allow reliable wireless communication is calculated.

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“…Integrated reconfigurable antenna which provides multiple selectable features meets the above said requirement. In [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], some design schemes are available in which two antennas are integrated on a solitary substrate to optimize the space utilization. In these reported schemes, small antennas are incorporated in huge sized UWB radiator either by reutilization of large printed area of UWB antenna as ground plane for the second antenna [4][5][6][7][8][9] or by placing the small sized antenna in electrically neutral area of UWB antenna [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…All these designs are good and solve the problem of underutilization of large printed area of UWB antenna. However in all reported designs, the numbers of reconfigurable features are confined to either frequency reconfiguration or NB-WB reconfiguration [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. However, single reconfiguration feature is not sufficient for future communication devices.…”

Section: Introductionmentioning

confidence: 99%

Two Port Integrated Reconfigurable Microstrip Patch Antenna

Sharma¹,

Tripathi²,

Rishi³

2019

PIER C

Self Cite

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A two port, integrated reconfigurable versatile antenna is proposed here. The proposed antenna can reconfigure its frequency, bandwidth, polarization state and radiation pattern and hence is versatile in its characteristics. The antenna is integrated in such a way that the space of one antenna can be used to print two antenna structures to increase the antenna versatility into a small package. PIN diodes are placed in a position so that the electrical switching of the PIN diodes makes every part of the antenna multipurpose. The prototype has been fabricated to authenticate the simulated results. The simulated and measured results are in good agreement. The antenna can be used for Cognitive Radio application.

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Impedance Matching Techniques for Microstrip Patch Antenna

Cited by 39 publications

References 25 publications

Modeling and validation of a new reconfigurable patch antenna through equivalent lumped circuit‐based design for minimum tuning effort

Modeling and validation of a new reconfigurable patch antenna through equivalent lumped circuit‐based design for minimum tuning effort

Channel modelling of a cooker hob environment for smart kitchens

Two Port Integrated Reconfigurable Microstrip Patch Antenna

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