The microwave and RF characteristics of FR4 substrates

Aguilar, J.R.; Beadle, M.; Thompson, P. T.; Shelley, M.W.

doi:10.1049/ic:19980078

Cited by 59 publications

(39 citation statements)

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“…Proposed antenna is designed on a FR4 substrate having dielectric constant 4.4 and loss tangent of 0.017, because FR4 has flame‐resistant properties and good strength . A microstrip feed is used to achieve the matching with the proposed antenna.…”

Section: Antenna Design and Structurementioning

confidence: 99%

“…Proposed antenna is designed on a FR4 substrate having dielectric constant 4.4 and loss tangent of 0.017, because FR4 has flame-resistant properties and good strength. 22 A microstrip feed is used to achieve the matching with the proposed antenna. First, 1 × √2 rectangular microstrip patch antenna is designed using high frequency structure simulator and after simulation, different iterations of antenna based on Fibonacci word fractal is simulated, finally, two rectangular slots etched out in ground plane and position of these slots are optimized using Whale Optimization Algorithm to achieve required performance.…”

Section: Antenna Design and Structurementioning

confidence: 99%

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On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

Singh

2018

Int J RF Microw Comput Aided Eng

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In this article, a planar antenna based on Fibonacci word fractal geometry with defected ground structure (DGS) has been investigated. A novel type of antenna radiator is proposed using Fibonacci word fractal which works for public safety and dedicated short range public safety applications. Size of proposed antenna is 50 × 44 mm and it resonates at 4.9 and 5.9 GHz having bandwidth ranging from 4.8 to 5.1 GHz and 5.8 to 6.8 GHz, respectively. Defected Ground Structure is used to improve gain for lower frequency band. Representative results of fractal patch antenna are reported to access the effectiveness of the developed approach in public safety applications. Simulation and experimental result confirms the efficiency of Whale Optimization Algorithm for antenna design. Experimentally measured results are matches well with simulated results and quite promising.

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Section: Antenna Design and Structurementioning

confidence: 99%

Section: Antenna Design and Structurementioning

confidence: 99%

On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

Singh

2018

Int J RF Microw Comput Aided Eng

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“…These two devices consist of 4 layers of FR4 or PTFE material with 3 three stacked patches. The dielectric constant and the loss tangent for the FR4 material are taken as 4.2 and 0.020 respectively (Aguilar et al, 1998). Fig.…”

Section: Effect Of the Substrate Lossmentioning

confidence: 99%

Micromachined High Gain Wideband Antennas for Wireless Communications

Pavuluri¹,

Wang²,

Sangster³

2010

Mobile and Wireless Communications Network Layer and Circuit Level Design

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“…FR‐4 substrates are most common but too lossy to use in Giga Hertz frequency range. The need for circuits capable of operating at frequencies over 1 GHz has motivated designers to consider materials other than traditional FR‐4 1–3 …”

Section: Introductionmentioning

confidence: 99%

“…The need for circuits capable of operating at frequencies over 1 GHz has motivated designers to consider materials other than traditional FR-4. [1][2][3] Materials having high permittivity reduce the size of microwave devices, because the wavelength traveling through the medium is inversely proportional to the square root of permittivity, and it leads to lower production cost. 4 Even though many ceramic materials having high permittivity (e 0 r ) and low loss tangent (tan d) are available, they are generally brittle in nature.…”

Section: Introductionmentioning

confidence: 99%

SrTiO₃‐Filled PTFE Composite Laminates for Microwave Substrate Applications

Rajesh

Murali

Rajani

et al. 2009

Int J Applied Ceramic Tech

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Strontium titanate (SrTiO3) filled polytetrafluroethylene (PTFE) substrates were fabricated through sigma mixing (SM), extrusion (E), calendering (C) followed by hotpressing (H) (SMECH) process. The filler dispersion in the polymer matrix and the surface morphology were studied using scanning electron microscopic (SEM) technique. The permittivity (ɛ′r) and loss tangent (tan δ) of the composites were measured using precision impedance and vector network analyzers. The experimental permittivity of filled composites was compared with theoretically predicted values. Dimensionally stable substrate having a permittivity of 13.1 and a loss tangent of 0.0055 at X‐band was prepared in the PTFE/SrTiO3 composite system.

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The microwave and RF characteristics of FR4 substrates

Cited by 59 publications

References 0 publications

On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

Micromachined High Gain Wideband Antennas for Wireless Communications

SrTiO₃‐Filled PTFE Composite Laminates for Microwave Substrate Applications

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The microwave and RF characteristics of FR4 substrates

Cited by 59 publications

References 0 publications

On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

On the design of planar antenna using Fibonacci word fractal geometry in support of public safety

Micromachined High Gain Wideband Antennas for Wireless Communications

SrTiO3‐Filled PTFE Composite Laminates for Microwave Substrate Applications

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Product

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SrTiO₃‐Filled PTFE Composite Laminates for Microwave Substrate Applications