A Broadband High-Gain Bi-Layer LPDA for UHF Conformal Load-Bearing Antenna Structures (CLASs) Applications

Bishop, Nicholas A.; Miller, Jason; Zeppettella, David; Baron, William; Tuss, James; Ali, Mohd. Hasan

doi:10.1109/tap.2015.2409866

Cited by 32 publications

(19 citation statements)

References 22 publications

(14 reference statements)

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“…Several research studies in recent past focussed on the design of LPDAs with stable broadband electromagnetic properties [6,8,9,[23][24][25][26][27]. The antennas were printed either on rigid substrates such as Arlon, Rogers, FR4 or on 1 mm thick PET substrates and hence cannot be considered for highly flexible electronics.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we investigate the electromagnetic characteristics of a broadband LPDA antenna designed on an ultra-thin Kapton film substrate having a thickness of 0.035 mm. The motivation came from studying some of the broadband LPDA designs [25][26][27][28][29] in which compactness was achieved by deforming the basic dipole structure. For example, the LPDAs of [25,28] were based on Kochshaped dipoles, while [29] and [27] employed meandered and sinusoidally varying dipoles geometries, respectively.…”

Section: Introductionmentioning

confidence: 99%

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A Highly Bendable Log-Periodic Array Antenna for Flexible Electronics

Abutarboush¹,

Siddiqui²,

Wali³

et al. 2020

PIER M

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An eleven element log-periodic dipole-array (LPDA) antenna, occupying a surface area of only 90 × 52 mm 2 , printed on an ultra-thin flexible Kapton substrate of thickness 0.035 mm, is proposed. The antenna operates with a stricter 10 dB reflection coefficient bound in the frequency bands 2.75-3.53 GHz and 4-6.2 GHz. For a less stringent bound of 6 dB (which is acceptable for wearable applications), it operates in the wider range of 2.7-6.8 GHz. The antenna has an end-fire radiation pattern with a maximum measured gain of 6 dBi. The flexibility of the antenna is illustrated by reflection and radiation pattern measurements for three different radii, i.e., 50, 30, and 10 mm in both the convex and concave configurations. It is experimentally demonstrated that LPDA exhibits stable input-impedance characteristics and consistent radiation properties over the whole operating band under all bending conditions. The low cost, light weight, and flexible design, as well as the broadband performance in both concave and convex bent configurations, prove the suitability of the antenna for the contemporary flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Highly Bendable Log-Periodic Array Antenna for Flexible Electronics

Abutarboush¹,

Siddiqui²,

Wali³

et al. 2020

PIER M

View full text Add to dashboard Cite

show abstract

“…Conformal load-bearing antenna structure (CLAS) integrates loadbearing capabilities and electrical performance into one structure [1,2], and has exhibited great potential in civil and military applications, such as vehicles and aircrafts [3]. To devise a flat outline, a typical CLAS can be formed by embedding a patch antenna array into a plane or curved composite structure [4,5], and it has a load-bearing structure and wave-transparent electromagnetic (EM) functions, as shown in Fig. 1 [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of power pattern in CLAS with the material thickness and properties error through interval arithmetic

Pedrycz¹,

Song

2017

IET Microwaves, Antennas & Propagation

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A novel analytical approach based on interval arithmetic is proposed to investigate the effect of material thickness and properties errors on the average power pattern in the conformal load‐bearing antenna structures (CLAS) for both local and global errors conditions. The uncertainties of the thickness or properties error of CLAS composite material are modelled as interval‐valued parameters. The dominant expressions between the thickness or properties error interval and the power pattern interval are derived by interval arithmetic along with some main electromagnetic characteristics (side‐lobe level, peak power, and half‐power beamwidth) expressed as intervals can be produced through interval analysis (IA). Some numerical examples are reported to validate the proposed approach and to show its reliability and efficiency when considering different thickness and property errors. The obtained results show that the proposed IA‐based approach offers tangible advantages and effectiveness against some traditional statistical techniques (such as the Monte Carlo method).

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“…Usually a coaxial cable is used to excite the LPDA antennas [5,6]. This feeding technique presents some drawbacks such as the difficulty of soldering process and can deteriorate both the radiation pattern and the antenna matching.…”

Section: Introductionmentioning

confidence: 99%

A Printed LPDA Antenna Fed by a Microstrip Line to Double Sided Parallel Strip Line from Backside

Zhou

Huang

et al. 2017

International Journal of Antennas and Propagation

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A novel planar printed log-periodic dipole array (LPDA) antenna fed by tapered microstrip line (MSL) to double sided parallel strip line (DSPSL) is proposed in this paper. The proposed antenna adopts MSL feeding approach from backside. Using this feeding technique makes the printed LPDA antenna easier to be integrated into radio frequency (RF) circuits. In this paper, four layers are used to construct the antenna. The four layers of the printed LPDA antenna are printed on three thin dielectric substrates which are integrated together. To validate this approach, a printed LPDA antenna is simulated and fabricated for operating in the S and C bands (2.5-6 GHz). The antenna showed a good result over the whole frequency range with 2 : 1 VSWR, an average gain of 6.5 dB, and stable radiation patterns. The measured results are in very good agreement with simulations.

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A Broadband High-Gain Bi-Layer LPDA for UHF Conformal Load-Bearing Antenna Structures (CLASs) Applications

Cited by 32 publications

References 22 publications

A Highly Bendable Log-Periodic Array Antenna for Flexible Electronics

A Highly Bendable Log-Periodic Array Antenna for Flexible Electronics

Analysis of power pattern in CLAS with the material thickness and properties error through interval arithmetic

A Printed LPDA Antenna Fed by a Microstrip Line to Double Sided Parallel Strip Line from Backside

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