A planar equiangular spiral antenna array for the V-/W-band

Tcheg, Paul; Bello, Kolawole D.; Pouhè, David

doi:10.23919/eucap.2017.7928487

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…The antenna has two operating bands with a 7.6 GHz impedance bandwidth from 18.1 to 25.7 GHz for the first and 3.4 GHz from 29.3 to 32.7 GHz for the second. The antenna is circularly polarized from 22.05 to 26.25 GHz, corresponding to an effective bandwidth (frequency band at which the axial ratio bandwidth matched with the impedance bandwidth [15]) of 3.51 GHz. The gain-bandwidth nearly covers the entire impedance bandwidth, with a peak gain of 7.5 dB at 22 GHz.…”

Section: The Single Element Antenna Structurementioning

confidence: 99%

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K-Band Ka-Band Planar Spiral Antenna Arrays With Integrated Corporated Feeding Network

Tcheg¹,

Pouhè²

2021

PIER C

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Although spiral antennas have undergone continuous development and refinement since Edwin Turner conceived them in 1954, only a few compact planar arrays exist. The shortcoming is even more significant when it comes to spiral antenna arrays in mode M2 operation. The present work addresses this issue, among other things. Based on a framework recently published, the paper presents two planar arrays of spiral antennas operating in the same frequency band and radiating for the first one an axial mode M1 and a conical mode M2 for the second. Both arrays are modeled, simulated, and fed with a corporate feeding network embedded in a dielectric substrate. It is shown that keeping the same topology, the array for conical M1 mode can be obtained from the array for mode M2 by a simple introduction of a phase shift on one branch of the feed and vice versa, providing thus the possibility to obtain in the same structure a spiral antenna array operating in both modes in the same frequency band simultaneously. Comparison between simulated and measured data shows good agreement.

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Section: The Single Element Antenna Structurementioning

confidence: 99%

“…14 shows good radiation characteristics (Figs. [15][16][17][18]. Again, measurement data have been added to the graphs for comparison.…”

Section: The Planar Array Of 2 × 2-elementsmentioning

confidence: 99%

K-Band Ka-Band Planar Spiral Antenna Arrays With Integrated Corporated Feeding Network

Tcheg¹,

Pouhè²

2021

PIER C

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A novel approach on design of a fractal inspired logarithmic spiral antenna-based absorber for polarization and incident angle insensitive broadband electromagnetic energy harvesting

Garu

Wang

2023

Journal of Applied Physics

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Design analysis employing numerical analysis has become one of the most significant components in realizing broadband spiral absorbers in the infrared (IR) region. To date, there have been very few research studies on broadband electromagnetic (EM) wave absorptions by such absorbers in that frequency band. Therefore, in this research, we have proposed a new type of absorber based on gradient log-spiral to enhance the absorption bandwidth in the IR region. The absorbers are designed by considering arrangements of different log-spiral arms in a fractal-like pattern. Investigation was carried out in both unit cell and array configuration. Strong average absorption reaching 88.5% in the unit cell and 83.6% in the array configuration was observed over the bandwidth from 4.5 to 100 THz for a wide range of incident angles. The absorption of the unit cell absorber remains almost stable up to 45° for transverse electric and 75° for transverse magnetic mode polarizations. This unique approach opens a new direction of imaging, EM stealth, camouflaging, and wireless EM energy harvesting applications.

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On the Influence of Ground and Substrate on the Radiation Characteristics of Planar Spiral Antennas

Tcheg¹,

Pouhè

2022

2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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A planar equiangular spiral antenna array for the V-/W-band

Cited by 5 publications

References 7 publications

K-Band Ka-Band Planar Spiral Antenna Arrays With Integrated Corporated Feeding Network

K-Band Ka-Band Planar Spiral Antenna Arrays With Integrated Corporated Feeding Network

A novel approach on design of a fractal inspired logarithmic spiral antenna-based absorber for polarization and incident angle insensitive broadband electromagnetic energy harvesting

On the Influence of Ground and Substrate on the Radiation Characteristics of Planar Spiral Antennas

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