Article
Engineering, Electrical & Electronic
Yang You, Yunlong Lu, Talal Skaik, Yi Wang, Jifu Huang
Summary: The communication presents a millimeter-wave 45-degree linearly polarized corporate-fed slot array antenna with reduced complexity and high performance achieved through a combination of techniques. The antenna demonstrates high cross-polarization discrimination, low sidelobe level, and efficiently utilizes only three essential metallic layers. Experimental results show excellent XPD, suppressed grating lobes, and high peak gain and antenna efficiency over a specific frequency range.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Rui-Sen Chen, Lei Zhu, Sai-Wai Wong, Xu-Zhou Yu, Yin Li, Long Zhang, Yejun He
Summary: By proposing a simplified feeding structure, a low-sidelobe cavity-backed slot antenna array was designed to achieve in-phase and nonuniform amplitude excitation without using power dividing network, simplifying the antenna structure significantly. The full-metal structure of the antenna provides a high power-handling capacity, and the feasibility of the design was verified through simulation and measurement results.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Kai-Ran Xiang, Fu-Chang Chen, Qing-Xin Chu
Summary: This article presents a method for designing a tunable coaxial filtering antenna. The antenna has a simple structure with a standard waveguide and metal cylinders, and the center frequency and bandwidth can be conveniently adjusted by changing the lengths of the cylinders. The paper provides detailed theoretical analysis and design process, and a third-order tunable filtering antenna with Chebyshev response is designed to verify the method. The antenna demonstrates a tunable range of 9.25 to 10.75 GHz for the center frequency and 2% to 8% for the fractional bandwidth, with flat gain greater than 6.5 dBi and good impedance and radiation characteristics throughout the tuning range.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Tsz-Ming Wong, Kwai-Man Luk, Kin-Fai Tong
Summary: A wideband via-free magnetoelectric (ME) dipole antenna is proposed for millimeter waveband applications. The antenna utilizes a substrate-integrated coaxial line (SICL) to excite an electric dipole patch and a half-wavelength radiating slot in phase to achieve an ME dipole. The antenna further incorporates a capacitive reactive impedance surface (RIS) for size reduction and bandwidth enhancement. An eight-element linear array is also designed, which can perform beam scanning in an active simulation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Xuan Yi, Hang Wong
Summary: This article presents a novel folded horn-fed open slot antenna with wide bandwidth and high gain for millimeter-wave applications. The antenna has a three-layer planar structure and is designed with differentially fed excitations. It achieves a wide impedance bandwidth and stable radiation patterns.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Matthieu Bertrand, Mauro Ettorre, Guido Valerio, Matteo Albani, M. Casaletti
Summary: This article introduces a circularly polarized corporate-fed radial-line slot antenna operating in the Ka-band, which is realized using low-cost, low-profile printed circuit board (PCB) technology. The antenna is fed by a corporate feed network based on a broadband pillbox-like circular transition, resulting in a 67% gain bandwidth improvement compared to traditional center-fed radial line slot antenna designs. The improvement in bandwidth is analytically derived and confirmed by measurements. The prototype is optimized, fabricated and characterized, with good agreement between simulated and measured gain bandwidths.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Yingrui Yu, Hung Luyen, Nader Behdad
Summary: The article introduces a wideband Rotman lens multibeam array implemented with SICLs, showing wide scanning range and nearly frequency-invariant beam steering performance. Experimental results demonstrate the effectiveness of the proposed multibeam array design for various mmW applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Jingxue Wang, Yujian Li, Fan Wu, Defu Jiang, Junhong Wang
Summary: This paper presents a wideband endfire magnetoelectric (ME) dipole antenna fed by a substrate integrated coaxial line (SICL). The antenna achieves endfire radiation through a combination of a horizontally oriented quarter-wave shorted patch and a dipole array. The proposed direct-feeding mechanism based on SICL structure provides a simple means of wideband impedance tuning. The antenna exhibits a wide impedance bandwidth, compact size, stable gain, low backward radiation, and low cross polarization.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Tian-Qi Fan, Botao Jiang, Ruizhi Liu, Jianping Xiu, Yue Lin, Hongtao Xu
Summary: A low-profile double U-slot microstrip patch antenna with a wide operating bandwidth has been developed. Simple design rules are provided for excellent first-pass design and desired characteristics. The measured results are in good agreement with the simulated results, showing a 50% increase in bandwidth.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Yu-Hang Yang, Shi-Gang Zhou, Bao-Hua Sun, Xian-Zhong Gao
Summary: This communication presents the design of a wideband circularly polarized (CP) antenna array based on sequential rotation (SR) technique that can achieve wide bandwidth and high polarization purity in millimeter-wave applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Zhang Wen, Xian Qi Lin, Chennan Li, Jing Guo, Yu Lu Fan
Summary: This letter introduces a planar, low-cost microwave ablation antenna that can produce local spherical ablation zones through a double dipole structure, powered by SICL without a balun. Impedance matching is achieved through mature and cheap printed circuit board technology, making it a promising commercial candidate for minimally invasive ablation.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Liyuan Yin, Cheng Jin, Qihao Lv, Binchao Zhang, Kaiqi Cao, Pengyu Zhang, Zhenghui Xue
Summary: This article introduces an independently adjustable transmitarray aperture with a thin profile and low cost, which enables the realization of a transmitarray antenna with high gain and low sidelobe level (SLL). The transmitarray aperture consists of a three-layer metasurface that can independently adjust the transmitted phase and amplitude. By covering the required phase range and achieving the desired amplitude distribution, the transmitarray aperture reduces the SLL. The advantage of independently controlling the amplitude and phase allows for easy realization and optimization, while improving performance. The design concept is validated through theoretical analysis, simulations, and measurements.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Ding Wang, Yu Jian Cheng, Shi Chao Jin, Sheng Hui Zhang, Shi Sen Yao, Lei Wang, Yong Fan
Summary: This paper presents a W-band small-size low sidelobe level 6 x 16 microwave guide slot array antenna based on silicon micromachining technology. With a unique feeding network and power dividers, it achieves the desired power distribution over a relatively wide bandwidth. Compared with conventional structures, the array antenna size is reduced by about 25%, while maintaining high gain and radiation efficiency at 94 GHz.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Ling Zhang, Yunlong Lu, Yang You, Qi-Ang Zhu, Yi Wang, Wen-Wen Yang, Jifu Huang
Summary: This letter introduces a wideband high performance 45 degrees linearly polarization 8 x 8-slot array antenna utilizing gap waveguide technology, with additional features such as balancing amplitude and phase distributions, suppressing grating lobes, and improving cross-polarization discrimination. A prototype antenna covering 5G millimeter-wave NR bands has been designed, fabricated, and measured, achieving an impedance bandwidth of 23-30 GHz with peak gain and antenna efficiency exceeding 24.6 dBi and 76.3% respectively, and sidelobe level and XPD performance of lower than -25.8 dB and better than 30.2 dB over the same frequency band.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Ubaid Ullah, Muath Al-Hasan, Slawomir Koziel, Ismail Ben Mabrouk
Summary: The letter introduces a single point-fed, geometrically simple circularly polarized (CP) antenna design for 28 GHz Ka-band applications. The proposed antenna features a small size, wideband, high gain, and excellent directional characteristics, making it suitable for wearable applications and systems with multiple antennas to account for user mobility.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
