Article
Computer Science, Information Systems
Chong Pan, Xinran Ba, Yuanhua Tang, Fengchun Zhang, Yusheng Zhang, Zhengpeng Wang, Wei Fan
Summary: This paper investigates and compares the REV method, fast amplitude-only calibration method, and complex amplitude calibration method for practical phased array calibration. A 4x8 URA is used to validate the methods. The results show that array element on/off measurement in the far field is a suitable reference calibration method.
Article
Computer Science, Information Systems
Yifa Li, Wei Fan, Huaqiang Gao, Fengchun Zhang
Summary: This paper presents the importance of phased array antennas in mmWave communications and the advantages and application examples of Antenna-in-package (AiP) systems. It specifically focuses on an 8x8 AiP experimental platform and the performance verification of an AiP-based channel sounder.
Article
Engineering, Electrical & Electronic
Zhixiang Cao, Yang Chen, Hongfu Meng
Summary: This article proposes a novel W-band 2-D monopulse sparse array antenna with suppressed sidelobe levels. The antenna is optimized using genetic algorithm and designed with irregular interconnected waveguide-based network and power divider network to achieve low sidelobe levels and high gain.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Yu Zhao, Hao Luo, Wenhao Tan, Zheng Zhou, Guoqiang Zhao, Houjun Sun
Summary: This paper proposes a W-band, high-gain, hybrid slot antenna array based on bulk silicon MEMS technology. A high-order-mode cavity is used to excite the 2 x 2-slot basic unit, achieving the low-profile requirement of the bulk silicon MEMS process. To avoid the fragile structure of large-scale antenna arrays, a ridge gap waveguide is employed to build the feed network for a large-scale array. An 8 x 8-slot hybrid antenna array is simulated and fabricated, achieving a relative bandwidth of 8.1% and a maximum gain of 26.1 dBi with a radiation efficiency of 65.2%. With its high gain and fabrication efficiency, this hybrid slot antenna array is valuable for W-band radar applications.
Article
Engineering, Electrical & Electronic
Tao Zhang, Zhangming Zhu, Xujun Ma, Haiyang Xia, Lianming Li, Tie Jun Cui
Summary: The study introduces an integrated tapered array antenna with series feed at W-band. Novel CPW feeding structure and wire-bonding technique were employed to enhance interconnection reliability and reduce fabrication cost for the single-layer PCB antenna design. The proposed antenna achieved wideband-impedance feature and was successfully used for human vital sign detection with a 100 GHz CMOS radar transceiver.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Chemistry, Multidisciplinary
Gwan Hui Lee, Jung Seok Lee, Dong Hwi Kim, Syifa Haunan Nashuha, Mun Ju Kim, Byung Cheol Min, Jae Hyun Lee, Woo Chang Lee, Gun Su Yun, Tae Gyu Kim, Bong Tae Kim, Hyun Chul Choi, Hyeon Keo Park, Yong Kyoon In, Kang Wook Kim
Summary: This paper proposes a design of a modular antenna/detector array, which solves the problem of having to remove the entire array for the service due to one faulty channel in the traditional array. The modular array allows for the easy and independent replacement of each channel module, minimizing interrupted service time for maintenance and improving performance under various tokamak operation conditions.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Eunhee Kim, Ilkyu Kim, Wansik Kim
Summary: This paper proposes a new method to design arrays with minimum redundancy, which can significantly increase the virtual array aperture while keeping the size of the transmit and receive antennas the same. The application of this method to subarray-type antennas using multi-channel transceivers is described, along with the analysis of the final beam pattern and its benefits and limitations.
Article
Engineering, Electrical & Electronic
Ali Hussein Muqaibel, Saleh Ahmed Alawsh, Ahmad I. Oweis, Mohammad S. Sharawi
Summary: In this study, coprime arrays with monopole and patch elements were designed to evaluate the impact of antenna directivity and behavior on DOA estimation accuracy. Experimental results showed that the patch array performed better than the monopole array in DOA estimation.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Demiao Chu, Yujun Xiong, Ping Li
Summary: The paper introduces a low-profile, high-gain beam-tilted continuous transverse stub (CTS) array antenna at W-band. The antenna features 32 radiating slots and utilizes a parallel plate waveguide (PPW) network with a linear source generator. By employing linear array scanning, inverted T-type structures are used in each stub to introduce wave path difference and deflect the outgoing beam. The antenna achieves a peak gain of 32.4 dB with a 12 degree beam tilt angle at 99GHz, demonstrating promising performance for Millimeter wave (MMW) telecommunication applications.
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Artem R. Vilenskiy, Wan-Chun Liao, Rob Maaskant, Vessen Vassilev, Oleg A. Iupikov, Thomas Emanuelsson, Marianna Ivashina
Summary: The approach for designing a beam-steering active phased array of antenna elements with integrated power amplifiers is based on the AiUC concept, involving full-wave analysis and harmonic balance simulations. The method has been demonstrated in a K-band AiUC design example, showing high efficiency and maximum radiated power.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Sebastian Semper, Michael Doebereiner, Christian Steinmetz, Markus Landmann, Reiner S. Thomae
Summary: Multidimensional channel sounding is used to measure the geometrical structure of mobile radio propagation by estimating the parameters of a multipath data model. The estimation is done using observations in frequency, time, and space, and the maximum likelihood estimation framework allows for high resolution in all dimensions. An appropriate parametric data model is necessary to accurately represent the multipath propagation, as well as a device data model that comes from calibration measurements. The extension of the multidimensional Richter maximization approach (RIMAX) parameter estimation framework with proper frequency responses shows better performance for higher relative bandwidths compared to conventional RIMAX implementation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Geochemistry & Geophysics
Banghua Yan, Khalil Ahmad
Summary: This article presents a generalized methodology for deriving sensor brightness temperature data records from antenna temperature data records, applied to the AMSU-A instrument. The study finds that the calculated correction coefficients are channel and scan position dependent, adding 0.2-1.6K to the antenna temperatures.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Engineering, Electrical & Electronic
Huaqiang Gao, Weimin Wang, Wei Fan, Fengchun Zhang, Zhengpeng Wang, Yongle Wu, Yuanan Liu, Gert Frolund Pedersen
Summary: This article introduces an efficient and automated mmWave phased array experimental platform for evaluating the control accuracy and reliable calibration of mmWave AiP. The platform features flexible excitation control and customized measurements in an automated and efficient manner. Demonstrated effectiveness through measurement campaigns investigating control accuracy, array calibration, and beam steering for mmWave phased array AiP.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Geochemistry & Geophysics
Wuyong Zhang, Tongxin Liu, Guobin Yang, Chunhua Jiang, Yaogai Hu, Xiaoli Zhu, Ting Lan, Zhengyu Zhao
Summary: Research on improving the quality of oblique sounding ionograms using adaptive beamforming technology, L-shaped antenna array, and MUSIC algorithm shows significant improvements in SNR, interference suppression, and clarity of swept-frequency ionograms for oblique incidence sounding (OIS). Comparing the application effects of three typical beamforming algorithms provides a reference for selecting the synthesized methods of ionospheric signals received by miniaturized arrays.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Ilkyu Kim, Eunhee Kim
Summary: Multi-band antennas are used to support multiple wireless communication services with a single antenna. However, irregular sizes of the elements can cause non-periodic arrangement in the array antenna. This paper proposes the use of patch antennas with fractal antennas to ensure the periodic arrangement and presents an antenna array with a feed network. The combined antenna operates at 2.45/3.7/4.3/5.0 GHz, with low mutual couplings between elements and a peak antenna gain ranging from 11.1 dBi to 14.4 dBi across the different bands.
APPLIED SCIENCES-BASEL
(2023)