A Wideband Beamforming Antenna Array for 802.11ac and 4.9 GHz in Modern Transportation Market

Tan, Moh Chuan; Li, Minghui; Abbasi, Qammer H.

doi:10.1109/tvt.2019.2963111

Cited by 21 publications

(23 citation statements)

References 24 publications

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“…15. The antenna array [22] consists of 4 vertical elements combined into a single port using the corporate fed method, in this case, 4 units of T/R modules as shown in Fig. 16.…”

Section: Characterizing the Amplitude Distributionmentioning

confidence: 99%

“…In this work, we are focusing on the highly scalable T/R module that was designed to support commercial band in 4.9 -5.9 GHz for linear phased array [22] applications in an HBF antenna system. The T/R module was designed using the commercially available off-the-shelf components using GaAs MMIC that is flexible to be integrated into the conventional phased array to form a smart beamforming antenna system.…”

Section: Introductionmentioning

confidence: 99%

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Design and Characterization of T/R Module for Commercial Beamforming Applications

Tan

Abbasi

2020

IEEE Access

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In the smart antenna system, the transmit and receive (T/R) module is one of the core components as it accounts for nearly 45% of the overall smart antenna system cost. Due to the high implementation cost of the T/R module, the literature was mainly centered around the military and satellite radar applications. However, over the years, the cost of the T/R module has been reduced drastically by leveraging on the advanced manufacturing technology, volume production pricing and adaptation of the commercially available off-the-shelf components, as a result, the adoption of the T/R module in commercial and industrial application become possible. In this work, we have proposed a commercially affordable T/R module that operates in 4.9-5.9 GHz band for commercial and industrial applications. The T/R module was designed, calibrated, and characterized for use in the beamforming smart antenna system. The design process including the circuit, schematic and printed circuit board (PCB) were highlighted. The proposed recursive calibration process managed to correct the phase error to ± 1° and amplitude error to ± 0.2 dB. In addition, the amplitude distribution of 0.5-1-1-0.5 combination has successfully suppressed the side-lobe level (SLL) to-28.7 dB for 0°,-22.71 dB for ± 20° and-12.77 dB for ± 40° beam steering. This work is aimed to promote the adoption of the T/R module into the commercial and industrial applications such as public or government infrastructure.

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“…15. The antenna array [22] consists of 4 vertical elements combined into a single port using the corporate fed method, in this case, 4 units of T/R modules as shown in Fig. 16.…”

Section: Characterizing the Amplitude Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Characterization of T/R Module for Commercial Beamforming Applications

Tan

Abbasi

2020

IEEE Access

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“…2(a). The antenna array [8] consists of 4 vertical elements combined into a single port using the corporate fed method, in this case, 4 units of T/R modules as shown in Fig. 2(b) are used to evaluate the Amplitude Distribution of the antenna system.…”

Section: T/r Modulementioning

confidence: 99%

An Amplitude Distribution Network in the T/R Module for Beamforming Applications

Tan¹,

Abbasi

2020

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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To catch up with the rapid technology changing trend in the smart antenna industry, the modular design approach is inevitable amongst the researchers and manufacturers to maintain their competitiveness in term of cost and technology adoption. In the smart antenna system, the modular approach has gained its popularity, particularly the building block such as transmit and receive (T/R) module which is complex and subjected to upgrade due to its components upgrade and technology improvement over the time. Amplitude Distribution in the beamforming antenna array system is crucial to achieve the optimum antenna radiation performance such as gain, halfpower beamwidth (HPBW), side lobe level (SLL) etc. The highly flexible and scalable T/R module with Amplitude distribution network has been proposed, the Amplitude Distribution for the linear array can be easily simulated using Computer Simulation Technology (CST) tools eliminating the needs of going through the complex and time-consuming mathematical analysis approach. The Amplitude Distribution has been simulated using CST tools and the performance was validated using the T/R module with the 4 x 4 array.

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“…The antenna structure consists of 4 units of 90° phase arrays to cover the entire 360° service angle, the array was specially customized internally to support the transportation market with smart antenna features. The array [6] comes with different size and gain as shown in Fig. 2, the dimensions are 60 mm, 100.875 mm, 141.75mm with the same width of 141.75 mm and thickness of 9.12mm.…”

Section: Design Of Radomementioning

confidence: 99%

Radome Design with Improved Aerodynamics and Radiation for Smart Antennas in Automotive Applications

Liang

Tan

et al. 2019

2019 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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More applications are using wireless communication, where the radomes become more important as they are essential in the performance of antennas as well as protect antennas from environmental conditions. The focus in this study is to design a radome for a customized smart antenna such that the attenuation of antenna signal and the increase in drag coefficient of vehicle are minimized. This paper presents a novel method of radome design and the simulation results demonstrate that the drag coefficient of the vehicle is slightly increased by less than 2% while the loss to the signal strength is less than 0.5 dB.

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A Wideband Beamforming Antenna Array for 802.11ac and 4.9 GHz in Modern Transportation Market

Cited by 21 publications

References 24 publications

Design and Characterization of T/R Module for Commercial Beamforming Applications

Design and Characterization of T/R Module for Commercial Beamforming Applications

An Amplitude Distribution Network in the T/R Module for Beamforming Applications

Radome Design with Improved Aerodynamics and Radiation for Smart Antennas in Automotive Applications

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