Directive Antenna for Ultrawideband Medical Imaging Systems by Amin M. Abbosh

Get full text

On Eavesdropping Attacks in Wireless Sensor Networks with Directional Antennas by Hong-Ning Dai, Qiu Wang, Dong Li, Raymond Chi-Wing Wong

“…The reason of the improved security of WSNs with directional antennas lies in (i) the smaller exposure region of a directional antenna and (ii) the fewer hops to route a packet due to the longer transmission range of a directional antenna. …”
Get full text

Selective Cooperative Transmission in Ad Hoc Networks with Directional Antennas by Eui-Jik Kim, Sungkwan Youm

“…This paper presents a selective cooperative transmission scheme (abbreviated SCT) for ad hoc network with directional antennas that leverages the benefits of directional-only antenna approach and cooperative communication. …”
Get full text

A Wideband Printed Directional Antenna Array with Impedance Regulating Load by Chun-Ying Kang, Shu Lin, Li-Wen Jing, Yu Tian, Jia-Xin Dong, Jia Lu

“…We proposed a broadband directional antenna array working at mobile communication frequency band, which achieves a relative bandwidth of 50.7%. …”
Get full text

High-Directivity Antenna Array Based on Artificial Electromagnetic Metamaterials with Low Refractive Index by Zhigang Xiao, Jiang Yao, Shaoquan Yin

Get full text

Single anchor node real-time positioning algorithm based on the antenna array by Yong Fu

“…This article presents an anchor node based on directional antenna array and reports the design of an automatic test system. …”
Get full text

Magnetic-Electric Dipole Antenna with Circular Polarization Feature and Directional Pattern with Improved Bandwidth by Seied Ali Banihashem, Pejman Mohammadi, Yashar Zehforoosh

“…This paper introduces a new and compact structure of a directional antenna consisting of an electric dipole and a truncated connection element. …”
Get full text

Efficient Design of the Microstrip Reflectarray Antenna by Optimizing the Reflection Phase Curve by Xing Chen, Qiang Chen, Pan Feng, Kama Huang

“…The microstrip reflectarray antenna is an attractive directional antenna combining advantages of both the reflector and the microstrip array antenna. …”
Get full text

An Omni-Directional Wideband Patch Antenna with Parasitic Elements for Sub-6 GHz Band Applications by Liton Chandra Paul, Himel Kumar Saha, Tithi Rani, Md. Zulfiker Mahmud, Tushar Kanti Roy, Wang-Sang Lee

“…The use of a partial ground plane plays a vital role in making it an omni-directional antenna, and the existence of a rectangular parasitic element in the ground plane influences the improvement of gain and directivity of the antenna. …”
Get full text

Target Q-Coverage Problem with Bounded Service Delay in Directional Sensor Networks by Deying Li, Hui Liu, Xianling Lu, Wenping Chen, Hongwei Du

“…By steering some sensors' directional antennas, our protocol could deal with the changes of network topology or monitoring tasks. …”
Get full text

TRAVELING-WAVE ANTENNA WITH A REDUCED LEVEL OF SIDE LOBES DUE TO VARIABLE PHASE VELOCITY by V. M. Goncharenko, K. S. Chemesov, E. B. Tretyakov, S. V. Maryin

“…As a result of numerical analysis of directional antennas traveling wave chart with slow phase velocity varying sinusoidally, revealed a decrease in the level of the first and second side lobes 1.5 ... 3 times as compared with the conventional optimum traveling wave antenna. …”
Get full text

Tracking- and Scintillation-Aware Channel Model for GEO Satellite to Land Mobile Terminals at Ku-Band by Ali M. Al-Saegh, A. Sali, J. S. Mandeep, Alyani Ismail

“…Recent advances in satellite to land mobile terminal services and technologies, which utilize high frequencies with directional antennas, have made the design of an appropriate model for land mobile satellite (LMS) channels a necessity. …”
Get full text

Millimeter-Wave Underlay D2D Communications: Channel Assignment, Transmission mode Selection and Power Control for Full-CSI and Limited-CSI Scenarios by Nima Reisi

“…We focus on the main features of mmWave communication including larger bandwidth, directive antenna arrays at BS and users, and more severe path loss and shadowing. …”
Get full text

More Benefits of Adding Sparse Random Links to Wireless Networks: Yet Another Case for Hybrid Networks by Gunes Ercal

“…These results further motivate future hybrid networks and advances in the use of directional antennas.…”
Get full text