Augmented MIMO: Body-Mounted Antennas for Tiny Wearable Devices by Akihito Noda

“…Multiple-input–multiple-output (MIMO), which uses multiple antennas at the transmitter and receiver, is now an essential technique for increasing communication capacity without widening the occupied radio bandwidth. …”
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Wideband and UWB Antennas for Wireless Applications: A Comprehensive Review by Renato Cicchetti, Emanuela Miozzi, Orlandino Testa

“…The performances of small, low-profile, and dielectric resonator antennas are illustrated paying particular attention to the application areas concerning portable devices (mobile phones, tablets, glasses, laptops, wearable computers, etc.) and radio base stations. …”
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Widening Frequency Envelope of an Antenna-Amplifier System With Coupling Structure by Jaanus Kalde, Anu Lehtovuori, Alvo Aabloo, Ville Viikari

“…Although large coupling is traditionally avoided in antenna arrays, we show that coupling might offer an advantage. …”
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Efficiency Improvements of Antenna Optimization Using Orthogonal Fractional Experiments by Yen-Sheng Chen, Ting-Yu Ku

“…The capability of orthogonal fractional experiments is demonstrated through three examples, including two tag antennas for radio-frequency identification (RFID) applications and one internal antenna for long-term-evolution (LTE) handheld devices. …”
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Inkjet-Printed Flexible MEMS Switches for Phased-Array Antennas by Mahmuda Akter Monne, Xing Lan, Chunbo Zhang, Maggie Yihong Chen

“…Printed MEMS switch technology is a promising candidate for flexible and reconfigurable phased-array antennas and other radio frequency (RF) and microwave frequency applications.…”
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Measuring Track-Related Pointing Errors on the Nanshan Radio Telescope with an Optical Pointing Telescope by Ye Yuan, Zhi-Yong Liu, Na Wang

“…The need for precise radio telescope pointing has driven great attention to investigating the effect of antenna local deformation or irregularity, such as unevenness in the azimuth track. …”
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MIMO Fading Emulator Development with FPGA and Its Application to Performance Evaluation of Mobile Radio Systems by Yoshio Karasawa, Katsuhiro Nakada, Guijiang Sun, Rikako Kotani

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A Time Variant Outdoor-to-Indoor Channel Model for Mobile Radio Based Navigation Applications by Wei Wang, Thomas Jost, Uwe-Carsten Fiebig, Wolfgang Koch

“…Time based positioning with terrestrial mobile radio signals has gained remarkable attention. To develop and validate positioning algorithms under realistic conditions, an accurate knowledge of the propagation channel is significant. …”
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5G new radio design:why/how to extend/innovate from LTE by Hui TONG

“…Then, 3GPP completed technical studies and standards towards satisfying ITU requirements, namely 5G new radio (NR). Two essential aspects of 5G NR were discussed. …”
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Antenna Design and Construction of a Free-Pass System for Hi-Pass Type Ticket Gates in Subways for Transportation-Disadvantaged Individuals by Yunsub Lee, Cholu Lee, Cheol Yoon, Woosu Kim

“…For the system to function, antennas are required at both the entrance and exit gates, with an additional antenna needed for the free-pass card, totaling three antennas. …”
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Minimized Low-Profile Wideband Antennas Using High Impedance Surface by Yizhu Shen

“…This paper proposes minimized low-profile wideband antenna by employing high impedance surface (HIS), for wireless application scenarios at radio frequency, microwave, and even terahertz. …”
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Design and Fabrication of Biodegradable Antenna Using Jute Material for UWB Application by Kinol. A. Mary Joy, Marshiana Devaerakkam, D. Godwin Immanuel, Krishnamoorthy Narasu Raghavan, Grace Kanmani Prince, Kassu negash

“…Ultra-Large Band (UWB) is a radio technology used for the transmission and distribution of radio energy over a wide frequency band with low power spectral density. …”
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Design and Characterization of a Miniaturized Antenna Based on Palisade-Shaped Metasurface by Ximing Li, Jingjing Yang, Zhigang Chen, Pengshan Ren, Ming Huang

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Spiral Slotted Microstrip Antenna Design for 700 MHz Band Application by Ricardo Meneses González, R. Linares y Miranda, R. Leyva Hernández

“…This technological advance represents a radio mobile antenna design challenge because it is necessary to design an antenna whose dimensions must be small enough, which satisfies gain, resonance frequency, and bandwidth requirements and is of low cost.…”
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Three-Mode Vortex Wave Generator with Double-Layer Patch Antennas by Jun Hu, Tong-Tong Qiu, Xue Lan, Wei Xu, Song-Song Qian

“…With the development of Multiple-Input Multiple-Output technologies, researches on radio vortex wave with orbital angular momentum have become active. …”
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Retracted: Design and Performance Evaluation of OAM-Antennas: A Comparative Review by Omar A. Saraereh

“…When propagating, the vortex electromagnetic wave has a spiral phase wavefront structure, and its many OAM modes are orthogonal to one another. The helical antenna offers the benefits of light weight, small size, and excellent circular polarization when compared to other OAM radio producing techniques. …”
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DESIGN ANALYSIS OF A LOW-COST PARABOLIC ANTENNA FOR DEVELOPING NATION by FRANK ONAIFO, ALEXANDER AKPOFURE OKANDEJI, FISAYO IDOWU, OMOWUMMI GRACE OLASUNKANMI, OLAWALE OLALUWOYE, OLAOLU FOLORUNSHO

“…Metallic parabolic antenna contributes more to signal loss by reflecting radio waves. …”
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Application of the Base Transceiver Station with Smart Antennas in the Power Distribution Sector by B. A. Kleinau, D. L. de Melo, M. T. de Melo, D. C. P. Barbosa, A. J. B. Oliveira, C. P. N. Silva, J. M. A. M. de Oliveira

“…For such applications, communication using radio frequency is preferred because this solution is more reliable than 3G/4G and cheaper than fiber optics. …”
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Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna by Pengying Xu, Yan Wang, Xiaoxian Xu, Longyang Wang, Zhihai Wang, Kunpeng Yu, Wenzhi Wu, Meng Wang, Guojun Leng, Dongming Ge, Xiaofei Ma, Congsi Wang

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Flat-Top Metasurface Broadband Mushroom Antenna for Microwave Power Transmission by Haixuan Li, Rui Zhang, Bingchuan Xie, Lu Tian, Zhicheng Wang, Zhengyu Deng

“…The stable flat-top radiation pattern makes it more popular in microwave radio transmission. Compared with other works, this antenna has the advantages of broadband, compactness, and wide beamwidth.…”
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