Results 11 to 20 of about 506,346 (193)

Rotman lens for mm-wavelengths [PDF]

SPIE Proceedings, 2002
The 77 GHz band has been reserved for intelligent cruise control in luxury cars and some public transport services in America and the United Kingdom. The Rotman lens offers a cheap and compact means to extend the single beam systems generally used, to fully functional beam staring arrangements.
Leonard T. Hall, Hedley J. Hansen, Derek Abbott   +2 more
openaire   +3 more sources

Multiobjective Optimization of a Rotman Lens through the QLWS Minimization [PDF]

International Journal of Antennas and Propagation, 2017
We address the multiobjective optimization of a Rotman lens by means of a recently proposed method based on the minimization of a properly defined global cost function named Quantized Lexicographic Weighted Sum (QLWS).
Daniele Pinchera, Stefano Perna, Marco Donald Migliore   +2 more
doaj   +2 more sources

X-band substarte integrated waveguide Rotman Lens

2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), 2015
This paper presents a novel substrate integrated waveguide (SIW) for X-band sensing applications. It employs a SIW Rotman Lens (RL) as a beam switching network. A prototype lens is designed with 7 beam ports and 9 array ports. The simulated results around the frequency of 10-GHz demonstrate the validity of the proposed design and scanning capability ...
Pourahmadazar, Javad, Denidni, T.
openaire   +2 more sources

Fourier Rotman Lens Enabled Directional Modulation Transmitter [PDF]

International Journal of Antennas and Propagation, 2015
A 10 GHz Fourier Rotman lens enabled dynamic directional modulation (DM) transmitter is experimentally evaluated. Bit error rate (BER) performance is obtained via real-time data transmission.
Yuan Ding, Yunhua Zhang, Vincent Fusco
doaj   +2 more sources

Differential beamforming using Rotman lens for wireless sensor networks

ICT Express, 2023
In this article, an optimal beamforming technique using a low cost intelligent Rotman lens antenna is proposed. The proposed technique enjoys full diversity with high coding gain, has a very low encoding and decoding complexity, and does not require ...
Samer Alabed, Mohammad Al-Rabayah, Nour Mostafa, Zakwan Al-Arnaout, Eyad M. Hamad, Issam Maaz, Yehia Kotb   +6 more
doaj   +1 more source

Formation of additional virtual reception channels when processing signals at the outputs of elements of the antenna array of a promising cellular base station

Физика волновых процессов и радиотехнические системы, 2021
The results of research on the layout of the antenna array for a promising cellular base station in the frequency range 1,8–1,88 GHz, which includes a linear antenna array of 12 slotted elements with rectangular directors, the diagram – forming scheme of
Alexander A. Bolkunov, Leonid A. Ovcharenko, Yuri G. Pasternak, Vladimir A. Pendyurin, Igor V. Popov, Fyodor S. Safonov, Sergey M. Fedorov   +6 more
doaj   +1 more source

Rotman Lens-Fed Fabry-Perot Resonator Antennas for Generating Converged Multi-Mode OAM Beams

IEEE Access, 2019
In this paper, we present a Rotman lens-fed Fabry-Perot resonator antennas (FPRA) for generating multi-mode OAM beams with low beam divergence. The Rotman lens works as a beamforming network in the FPRA for the multi-mode OAM operation, significantly ...
Xudong Bai, Anjie Cao, Fanwei Kong, Jingyi Qian, Shengyang Xu, Weizhong Yan, Chong He, Xianling Liang, Ronghong Jin, Weiren Zhu   +9 more
doaj   +1 more source

Design and Analysis of Antenna Feeding Networks Based on the Rotman Lens Using Interval Analysis (IA)

International Journal of Antennas and Propagation, 2020
A new method for the design of antenna array feeding networks has been proposed in this work. In particular, the considered feeding networks are based on the Rotman lens.
Massimo Donelli, Mohammedhusen H. Manekiya   +1 more
doaj   +1 more source

Beam-Reconfigurable Antenna Based on Vector Modulator and Rotman Lens on LTCC

IEEE Access, 2021
A beam-switching array is designed using a $4\times 6$ Rotman lens as a beam-forming network to switch the beam towards −30°, −10°, 10°, and 30°.
Sabin Kumar Karki, Mikko Varonen, Mikko Kaunisto, Arto Rantala, Markku Lahti, Antti Lamminen, Jan Holmberg, Mikko Kantanen, Juha Ala-Laurinaho, Ville Viikari   +9 more
doaj   +1 more source

Development of a phased array antenna powered by Rotman printed lens for a mobile satellite communication terminal

Физика волновых процессов и радиотехнические системы, 2021
Connecting to the Internet whenever and wherever you travel is no longer a luxury. All people have the ability to connect to the Internet and share data away from home.
Yuri G. Pasternak, Vladimir A. Pendyurin, Kirill S. Safonov, Sergey M. Fedorov   +3 more
doaj   +1 more source