Dual-Linearly Polarized, Electrically Small, Low-Profile, Broadside Radiating, Huygens Dipole Antenna

Tang, Ming‐Chun; Wu, Zhentian; Shi, Ting; Zeng, Hao; Lin, Wei; Ziolkowski, Richard W.

doi:10.1109/tap.2018.2840835

Cited by 38 publications

(21 citation statements)

References 41 publications

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“…This result is deemed reasonably high enough [34], [35] and is demonstrated below to be comparable to recently reported narrowband IBFD antennas. It is important to note that the average isolation level between the two ports of this prototype is much higher than that attained with the previously reported dual linearly polarized (dual-LP) HDA (25.8 dB) [5], which achieved that isolation level because of its orthogonal polarization states.…”

Section: Simulated and Measured Resultscontrasting

confidence: 56%

“…A variety of electrically small HDAs with specific characteristics have been developed that serve the needs of many specific spacelimited wireless communication systems. Single-polarization [1]- [4], dual-polarization [5], polarization reconfigurable [6], pattern reconfigurable [7], and non-Foster [8] versions have been designed and tested.…”

Section: Introductionmentioning

confidence: 99%

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A Compact, Low-Profile, Broadside Radiating Two-Element Huygens Dipole Array Facilitated by a Custom-Designed Decoupling Element

Tang

Chen

Shi

et al. 2021

IEEE Trans. Antennas Propagat.

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A compact, low-profile, broadside radiating, twoelement Huygens dipole array is developed for in-band fullduplex (IBFD) applications. Each radiating element is a multilayer near-field resonant parasitic (NFRP) design that is electrically small with = 0.76 at its resonance frequency, 0 = 1.511 GHz. The center-to-center distance between the elements is only 0.3 0 . The array's outstanding performance is facilitated by a custom-designed decoupling element. This specially engineered scatterer is printed on an additional layer and consists of a pair of meander-line resonators connected by a metallic strip. The overall height of the entire system is only 0 /20.3. The passive decoupling element operates as several electrically small electric dipoles whose scattered fields mitigate the interactions between the two radiators. It provides very high isolation levels between them and improves the overall directivity of the array. The optimized array was fabricated, assembled and tested. The measured results, in good agreement with their simulated values, confirm that the developed decoupling structure not only increases the peak isolation level from 14.4 to 50.4 dB; but it also improves the peak realized gain in the broadside direction by 0.5 dB and the corresponding front-to-back ratio (FTBR) value by 14.4 dB.

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Section: Simulated and Measured Resultscontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

A Compact, Low-Profile, Broadside Radiating Two-Element Huygens Dipole Array Facilitated by a Custom-Designed Decoupling Element

Tang

Chen

Shi

et al. 2021

IEEE Trans. Antennas Propagat.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Ultimately, a unidirectional antenna is highly desired for any "sub-exterior surface" antenna system. The electrically small Huygens dipole antennas developed in [31][32][33][34] are advantageous in this regard. The linearly-polarized Huygens antenna is made up of three major components: a capacitively loaded loop (CLL), an Egyptian axe dipole (EAD), and a smaller dipole that excites these near-field resonant parasitic (NFRP) elements by coupling energy into them.…”

Section: Huygens Design Performancementioning

confidence: 99%

A Metamaterial-Inspired Approach to Mitigating Radio Frequency Blackout When a Plasma Forms Around a Reentry Vehicle

Webb

Ziolkowski

2020

Photonics

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Radio frequency (RF) blackout and attenuation have been observed during atmospheric reentry since the advent of space exploration. The effects range from severe attenuation to complete loss of communications and can last from 90 s to 10 min depending on the vehicle’s trajectory. This paper examines a way of using a metasurface to improve the performance of communications during reentry. The technique is viable at low plasma densities and matches a split-ring resonator (SRR)-based mu-negative (MNG) sheet to the epsilon-negative (ENG) plasma region. Considering the MNG metasurface as a window to the exterior of a reentry vehicle, its matched design yields high transmission of an electromagnetic plane wave through the resulting MNG-ENG metastructure into the region beyond it. A varactor-based SRR design facilitates tuning the MNG layer to ENG layers with different plasma densities. Both simple and Huygens dipole antennas beneath a matched metastructure are then employed to demonstrate the consequent realization of significant signal transmission through it into free space beyond the exterior ENG plasma layer.

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“…Thus, a single antenna element with wide beamwidth must be required to overcome the issues of the conventional phased array antenna structures. Although there have been previous researches for antennas having wide beamwidth characteristics such as Huygens source antennas [1][2][3], magneto-electric dipole antennas [4][5][6] and planar magnetic dipole antennas [7][8][9], they suffer from either complicated geometry, very narrow bandwidth, high profile, onedimensional expansion of beamwidth or need for a large ground plane. To overcome these drawbacks, a new planar antenna concept based on multipole radiation element has been recently proposed [10].…”

Section: Introductionmentioning

confidence: 99%

Electrically Conformal Antenna Array With Planar Multipole Structure for 2-D Wide Angle Beam Steering

2020

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Electrically conformal antenna arrays (ECAA) for 2-dimensional (2-D) beamforming configured by wide beamwidth multipole radiation elements are proposed. Unlike the conventional conformal antenna array with physically curved shape, the proposed arrays are planar structures with wideangle beam steering. The wide range of beam steering with a low gain variation allows the planar array structure to achieve the electrically conformal phased array patterns. In order to verify the ECAA concept, two different types of ECAA in a 1x8 configuration using planar multipole antenna elements were fabricated at 5.8 GHz and compared to the conventional patch array. Each multipole element had halfpower-beamwidth (HPBW) wider than 110° at both E-and H-planes with the maximum HPBW of 175°. The first type of ECAA showed a measured peak gain of 10.8 dBi with a measured half power steering angle of 155° while maintaining a side lobe level (SLL) less than-10 dB. Further, the second ECAA showed a measured peak gain of 12.8 dBi with a measured half power steering angle of 144° while keeping the SLL less than-10 dB. These scan angles of the first and second types were extended about 66.7% and 54.8%, respectively from the conventional patch array with the same size. Lastly, two types of 8x8 array modules for 2-D beam steering were verified at 5.8 GHz and the first type showed a maximum peak gain of 21.0 dBi. Further, the 2-D half power steering angles in E-and H-planes of the second type were about 145° and 137°, respectively. INDEX TERMS Beamforming, electrically conformal antenna array (ECAA), phased array antenna, multipole antenna, wide angle 2-D beam steering

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Dual-Linearly Polarized, Electrically Small, Low-Profile, Broadside Radiating, Huygens Dipole Antenna

Cited by 38 publications

References 41 publications

A Compact, Low-Profile, Broadside Radiating Two-Element Huygens Dipole Array Facilitated by a Custom-Designed Decoupling Element

A Compact, Low-Profile, Broadside Radiating Two-Element Huygens Dipole Array Facilitated by a Custom-Designed Decoupling Element

A Metamaterial-Inspired Approach to Mitigating Radio Frequency Blackout When a Plasma Forms Around a Reentry Vehicle

Electrically Conformal Antenna Array With Planar Multipole Structure for 2-D Wide Angle Beam Steering

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