Actualization of a phased array antenna utilizing digital beamforming

Jagadesh, T.; Rani, B. Sheela

doi:10.1109/iccicct.2016.7987927

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…In the recent years, the demand for the phased array antennas (PAAs) has grown rapidly focusing research directions towards complex array system capable of producing high gain, narrow beamwidth, and circular polarization. The PAAs are widely used for high directivity, narrow beams, beam‐forming and scanning in data links, microwave synthetic aperture imaging, commercial drones applications, and radar communication . Typically, the transmitting elements used in the PAAs are microstrip patch, Vivaldi antenna, and dipole because of their high gain and directionality .…”

Section: Introductionmentioning

confidence: 99%

“…The PAAs are widely used for high directivity, narrow beams, beam‐forming and scanning in data links, microwave synthetic aperture imaging, commercial drones applications, and radar communication . Typically, the transmitting elements used in the PAAs are microstrip patch, Vivaldi antenna, and dipole because of their high gain and directionality . However, narrow beamwidth feature and linear polarization (vertical or horizontal) attribute of such antennas restricts their employability in practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Circularly polarized 4 × 8 stacked patch antenna phased array with enhanced bandwidth for commercial drones

Khan

Iftikhar

Naqvi

et al. 2019

Int J RF Microw Comput Aided Eng

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This paper demonstrates the design procedure of a 4 × 8 phased array antenna. Initially, a unit element in multilayer topology with orthogonal slots in the ground plane to couple electromagnetic energy is designed. Then, a stacked patch with truncated edges is placed on the top thick substrate layer to enhance the bandwidth to 600 MHz. This multilayered stacked patch unit element is then used to design a 1 × 4 and 4 × 8 slot coupled stacked patch array.On the bottom side, a novel feedline structure is designed to provide a 90 o phase difference at the antenna feed for the circular polarization. The phase difference is achieved in the feedline structure using a quarter wavelength (λ g /4) difference in the lengths. After the numerical validation, both 1 × 4 and 4 × 8 stacked patch antenna arrays are fabricated to validate the simulations.The final 4 × 8 array achieved the target specification of an active reflection of less than −10 dB over 2.4 to 3.0 GHz, axial ratio of less than 3 dB, and stable radiation pattern over the complete band. In addition, beam scanning characteristics of the proposed stacked patch antenna arrays are also verified. The prototype resulted a peak gain of 19.5 dB at 2.7 GHz, 3-dB beamwidth around 12 o in the xz-plane, and scanning range of 90 o . Overall, good agreement between measured and simulated results showed that the proposed designed array capable of providing 600 MHz is an excellent candidate for the radar communication, small commercial drones, and synthetic aperture radar applications. K E Y W O R D Scircularly polarized, couple slot stacked patch antenna, enhanced bandwidth, printed phased array

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Circularly polarized 4 × 8 stacked patch antenna phased array with enhanced bandwidth for commercial drones

Khan

Iftikhar

Naqvi

et al. 2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…Over the past decades, the demand for phased array antennas (PAAs) has been growing rapidly with active research on them [1,2]. The PAA is widely used for high gain beam-forming and -scanning in telecommunication [3], microwave imaging [4,5], and radar applications [6]. Typical radiating elements of the PAA are the dipole, microstrip patch, and Vivaldi antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of S-Band Phased Array Antenna with High Isolation Using Broadside Coupled Split Ring Resonator

Hwang

Lee

Kim

et al. 2018

J Electromagn Eng Sci

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In this paper, a method of designing a Vivaldi type phased array antenna (PAA) which operates at S-band (2.8-3.3 GHz) is presented. The presented antenna uses broadside coupled split ring resonators (BC-SRRs) for high isolation, wide field of view, and good active Sparameter characteristics. As an example, we design a 1 × 8 array antenna with various BC-SRR structures using theory and EM simulations. The antenna is fabricated and measured to verify the design. With the BC-SRR implemented between the two radiating elements, the isolation is shown to be enhanced by 6 dB, up to 23 dB. The scan angle is shown to be within ±53° based on a-10 dB active reflection coefficient. The operation of the scan angle is possible within ±60° with a little larger reflection coefficient (-7 dB to-8 dB). The proposed design with BC-SRRs is expected to be useful for PAA applications.

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An Ultrathin FSS Absorber for X-Band Applications

Manokaran,

Sivasamy

et al. 2024

2024 Ninth International Conference on Science Technology Engineering and Mathematics (ICONSTEM)

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Actualization of a phased array antenna utilizing digital beamforming

Cited by 3 publications

References 10 publications

Circularly polarized 4 × 8 stacked patch antenna phased array with enhanced bandwidth for commercial drones

Circularly polarized 4 × 8 stacked patch antenna phased array with enhanced bandwidth for commercial drones

Design of S-Band Phased Array Antenna with High Isolation Using Broadside Coupled Split Ring Resonator

An Ultrathin FSS Absorber for X-Band Applications

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