A millimeter wave cylindrical conformal array with conical beam

Wang, H.; Fang, Da‐Gang; Liu, Y. K.; Wang, Y. R.; Xu, Jian

doi:10.1109/apmc.2009.5385301

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…For mmWave frequency, the size of the antenna required is very small thus resulting in smaller ranges for communication. To overcome this problem antenna must be used in an array so that overall gain can get increased along with the range [1]. Though mmWave frequency spectrum is unutilized, researchers are exploring it for various applications like body centric communication [2], detection of concealed threats [3] and 5G communication [4].…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Millimeter Wave Antenna with Integrated Inter-digital Capacitor Structure

Peshwe¹,

Kothari²

2018

RADIOENGINEERING

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In this paper, we present an approach for performance enhancement of an antenna for millimeter wave (mmWave) applications. From mmWave band, a 30 GHz frequency is selected for designing a patch antenna as it is suitable for the number of applications. Then the designed antenna is modified by inserting a capacitive structure i.e., inter-digital capacitor (IDC) for better impedance matching. Insertion of IDC structure results in antenna size reduction along with the increased directivity and enhancement in gain. Similarly, this technique is capable of providing extra resonance with an advantage of fine tuning, as it offers control over both resonating frequencies independently. Further, a linear antenna array is designed with the same approach for mutual coupling analysis. From the results, it has been found that this technique is also capable of providing mutual coupling mitigation. Thus insertion of IDC structure provides overall performance enhancement in mmWave antenna.

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Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Millimeter Wave Antenna with Integrated Inter-digital Capacitor Structure

Peshwe¹,

Kothari²

2018

RADIOENGINEERING

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“…11 Xuan proposed a conical conformal antenna array leading to an omnidirectional broadside pattern. 12 Bernard presented the radiation pattern of a monopole antenna mounted on the projectile with its main beam at 34…”

Section: Introductionmentioning

confidence: 99%

The conical conformal MEMS quasi-end-fire array antenna

Lin

et al. 2017

Mod. Phys. Lett. B

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The microelectromechanical system (MEMS) quasi-end-fire array antenna based on a liquid crystal polymer (LCP) substrate is designed and fabricated in this paper. The maximum radiation direction of the antenna tends to the cone axis forming an angle less than 90 • , which satisfies the proximity detection system applied at the forward target detection. Furthermore, the proposed antenna is fed at the ended side in order to save internal space. Moreover, the proposed antenna takes small covering area of the proximity detection system. The proposed antenna is fabricated by using the flexible MEMS process, and the measurement results agree well with the simulation results. This is the first time that a conical conformal array antenna is fabricated by the flexible MEMS process to realize the quasi-end-fire radiation. A pair of conformal MEMS array antennas resonates at 14.2 GHz with its mainlobes tending to the cone axis forming a 30 • angle and a 31 • angle separately, and the gains achieved are 1.82 dB in two directions, respectively. The proposed antenna meets the performance requirements for the proximity detection system which has vast application prospects.

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Fixed‐frequency conical beam scanning antenna array with small ripple for Satcom‐on‐the‐Move system

Liu

et al. 2019

Micro & Optical Tech Letters

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A conical beam antenna array with fixed‐frequency scanning capability is proposed. Twelve open waveguide radiating elements filled with microwave ferrite on a metal ground plane are evenly distributed around a circle to realize small gain ripple and the array is fed by a planar feeding structure to realize low profile. The fixed‐frequency beam scanning can be realized by varying the magnetic bias field applied perpendicularly to the width of the waveguide. The coupled lines with two shorts are utilized to realize the high characteristic impedance. The measured results show that the conical beam scans from 13° to 31° at the center frequency and the gain is better than 8 dBi. The ripple is less than 0.5 dB. Good agreement has been observed between the simulated results and the measured ones.

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A millimeter wave cylindrical conformal array with conical beam

Cited by 6 publications

References 14 publications

Performance Enhancement of Millimeter Wave Antenna with Integrated Inter-digital Capacitor Structure

Performance Enhancement of Millimeter Wave Antenna with Integrated Inter-digital Capacitor Structure

The conical conformal MEMS quasi-end-fire array antenna

Fixed‐frequency conical beam scanning antenna array with small ripple for Satcom‐on‐the‐Move system

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