A Two-Element Biomimetic Antenna Array With Enhanced Angular Resolution and Optimized Power Extraction

Masoumi, Amir; Ghaemi, Kasra; Behdad, Nader

doi:10.1109/tap.2014.2386355

Cited by 20 publications

(22 citation statements)

References 12 publications

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“…Depending on the sign of B C it can be realized as an inductor (B C < 0) or as a capacitor (B C > 0). If no mutual antenna coupling is present (G 12 =B 12 =0), (25) and (27) simplify to…”

Section: Design Processmentioning

confidence: 99%

“…The biomimetic antenna array shall be designed for a phase enhancement factor of η=3. Using (25) and (27), the necessary coupling network values can be calculated to G C =78.8 mS and B C =−15.7 mS considering a G L of 20 mS. This can be realized at 76.5 GHz by a resistor with R C =13 Ω and an inductor with L C =133 pH.…”

Section: Fabrication and Measurementmentioning

confidence: 99%

“…Here, an increase in angle estimation accuracy of factor 2 was achieved. In [25], the boundaries of the fundamental trade-off of the BMAA was investigated and an upper limit of the angular resolution enhancement without sacrificing power was derived.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Generalized Model for Two-Element Biomimetic Antenna Arrays

Gruner¹,

Chaloun²,

Waldschmidt³

2019

IEEE Trans. Antennas Propagat.

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Biomimetic Antenna Arrays (BMAAs) are antenna systems enabling an improved angle estimation for small apertures by mimicking the hearing system of the fly Ormia ochracea. This is achieved by a special kind of coupling applied to the antenna elements inspired by the insect. However, recent designs of BMAAs rely on a strong mutual coupling between the antenna elements. In this paper, it will be shown that the strong mutual coupling is not needed for a BMAA at the antenna side, and a generalized model of the biomimetic antenna system is theoretically derived, evaluated, and verified by measurements. This new model also gives an intuitive insight into the working principle of the biomimetic antenna system.

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“…Depending on the sign of B C it can be realized as an inductor (B C < 0) or as a capacitor (B C > 0). If no mutual antenna coupling is present (G 12 =B 12 =0), (25) and (27) simplify to…”

Section: Design Processmentioning

confidence: 99%

Section: Fabrication and Measurementmentioning

confidence: 99%

See 1 more Smart Citation

A Generalized Model for Two-Element Biomimetic Antenna Arrays

Gruner¹,

Chaloun²,

Waldschmidt³

2019

IEEE Trans. Antennas Propagat.

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show abstract

“…Zhang et al developed an electrical coupling filter with two inputs and two outputs for miniaturized microphone arrays [30]. In addition to sound localizations, Behdad et al applied electrical coupling circuits to miniaturizations of antenna arrays for direction finding applications [33,34,35,36,37,38,39]. Instead of enlarging the intensity differences, they focused on the phase enhancements between two antennas for determining the AOA of incident electromagnetic waves.…”

Section: Introductionmentioning

confidence: 99%

A Biomimetic Miniaturized Microphone Array for Sound Direction Finding Applications Based on a Phase-Enhanced Electrical Coupling Network

Huang¹,

Liu²

2019

Sensors

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In this research, we proposed a miniaturized two-element sensor array inspired by Ormia Ochracea for sound direction finding applications. In contrast to the convectional approach of using mechanical coupling structures for enlarging the intensity differences, we exploited an electrical coupling network circuit composed of lumped elements to enhance the phase differences and extract the optimized output power for good signal-to-noise ratio. The separation distance between two sensors could be reduced from 0.5 wavelength to 0.1 wavelength 3.43 mm at the operation frequency of 10 kHz) for determining the angle of arrivals. The main advantages of the proposed device include low power losses, flexible designs, and wide operation bandwidths. A prototype was designed, fabricated, and experiments examined within a sound anechoic chamber. It was demonstrated that the proposed device had a phase enhancement of 110 ∘ at the incident angle of 90 ∘ and the normalized power level of −2.16 dB at both output ports. The received power levels of our device were 3 dB higher than those of the transformer-type direction-finding system. In addition, our proposed device could operate in the frequency range from 8 kHz to 12 kHz with a tunable capacitor. The research results are expected to be beneficial for the compact sonar or radar systems.

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“…Numerous research projects have been reported previously to adapt the principle of this hearing system to technical systems [2]- [5]. In [6] a thorough examination of the biomimetic antenna array (BMAA) was presented.…”

Section: Introductionmentioning

confidence: 99%

Towards a mm-wave planar biomimetic antenna array with enhanced phase sensitivity

Gruner

Chaloun

Waldschmidt

2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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Abstract-The design and measurements of a two-element biomimetic antenna array is presented with enhanced phase sensitivity at 20 GHz using planar structures only. The antenna array hereby mimics the hearing system of the parasitoid fly Ormia ochracea. To the authors' knowledge, this is the first biomimetic antenna array using frequencies above 1 GHz. Using an aperture coupled patch antenna array with element spacing of λ/5 and a corresponding external coupling network a phase gain of 5 has been achieved. The proposed architecture is supposed to be usable in even higher frequency bands, especially in the mm-wave range.

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A Two-Element Biomimetic Antenna Array With Enhanced Angular Resolution and Optimized Power Extraction

Cited by 20 publications

References 12 publications

A Generalized Model for Two-Element Biomimetic Antenna Arrays

A Generalized Model for Two-Element Biomimetic Antenna Arrays

A Biomimetic Miniaturized Microphone Array for Sound Direction Finding Applications Based on a Phase-Enhanced Electrical Coupling Network

Towards a mm-wave planar biomimetic antenna array with enhanced phase sensitivity

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