Results 41 to 50 of about 157,315 (201)

Dual-Band Shared-Aperture Base-Station Antenna Array With Dual Polarization Using Filtering Magnetoelectric Dipole Antenna

IEEE Open Journal of Antennas and Propagation
This paper presents a dual-band shared-aperture antenna array using a filtering magnetoelectric (ME) dipole antenna for the application of mobile-communication base station.
Zhi Jing Xiao, Yun Fei Cao, Jia Sheng Lin, Yu Lan, Quan Xue   +4 more
doaj   +1 more source

mm-Wave Waveguide Traveling-Wave Power Combiner Design Using an Equivalent Circuit Model

IEEE Access, 2019
The waveguide traveling-wave power combiner (WTWPC) falls into the category of asymmetrical non-isolated power combiners, and, therefore, the active load modulation occurring within the combiner was investigated.
Honglei Sun, Xiao-Wei Zhu, Ruijia Liu, Zhi Hao Jiang   +3 more
doaj   +1 more source

Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

International Journal of Antennas and Propagation, 2020
This paper presents a quad-band, 3D mountable rectenna module for ambient energy harvesting. With the aim of powering up Internet of Things (IoT) nodes in practical ambient environments, a hybrid approach of combining power, both at RF and DC, is adopted
Fatima Khalid, Warda Saeed, Nosherwan Shoaib, Muhammad U. Khan, Hammad M. Cheema   +4 more
doaj   +1 more source

A Multi-Band Magneto-Electric Dipole Antenna With Wide Beam-Width

IEEE Access, 2020
A multi-band and wide beam-width magneto-electric (ME) dipole antenna is proposed in this report. The proposed antenna has a simple structure, which consists of four $\Gamma $ -shaped electric plates which can change the current distribution and realize ...
Guangwei Yang, Shuai Zhang, Jianying Li, Yiming Zhang, Gert Frolund Pedersen   +4 more
doaj   +1 more source

1-bit reconfigurable transmitarray with low loss and wide bandwidth

New Journal of Physics, 2021
We present a novel X-band 1-bit reconfigurable transmitarray with excellent polarization conversion. The basic element consists of two layers of metal patterns connected by a metal through-hole and feed structures.
Wen Hua Gao, Mao Chen, Qiang Cheng, Rui Wen Shao, Jing Cheng Liang, Yuan Gao, Tie Jun Cui   +6 more
doaj   +1 more source

Enabling High-Fidelity Ultra-Wideband Radio Channel Emulation: Band-Stitching and Digital Predistortion Concepts

IEEE Open Journal of Antennas and Propagation, 2022
Channel emulators are the key instrument in radio performance testing. The fidelity of the emulated channel with respect to the target channel models directly affects the credibility of the testing result.
Yilin Ji, Wei Fan
doaj   +1 more source

CMB polarimetry with BICEP: instrument characterization, calibration, and performance [PDF]

, 2008
BICEP is a ground-based millimeter-wave bolometric array designed to target the primordial gravity wave signature on the polarization of the cosmic microwave background (CMB) at degree angular scales. Currently in its third year of operation at the South
Ade, P., Barkats, Denis, Battle, John O., Bierman, Evan M., Bock, James J., Chiang, H. Cynthia, Dowell, C. Darren, Duband, L., Hivon, Eric F., Holzapfel, William L., Hristov, Viktor V., Jones, William C., Kaufman, J. P., Keating, Brian G., Kovac, John M., Kuo, Chao-Lin, Lange, Andrew E., Leitch, Erik M., Mason, Peter V., Matsumura, Tomotake, Nguyen, Hien T., Ponthieu, Nicolas, Rocha, Graca M., Takahashi, Yuki D., Yoon, Ki Won   +24 more
core   +4 more sources

X-Band Dual Circularly Polarized Patch Antenna With High Gain for Small Satellites

IEEE Access, 2019
This paper presents an X-band circularly polarized patch antenna with a simulated high gain of 12.5 dBi and a simulated side-lobe-level of below -20 dB, within the bandwidth of 5.2%.
Paolo Squadrito, Shuai Zhang, Gert Fraolund Pedersen   +2 more
doaj   +1 more source

SPIDER: a balloon-borne CMB polarimeter for large angular scales [PDF]

, 2010
We describe SPIDER, a balloon-borne instrument to map the polarization of the millimeter-wave sky with degree angular resolution. Spider consists of six monochromatic refracting telescopes, each illuminating a focal plane of large-format antenna-coupled ...
Ade, P. A. R., Amiri, M., Benton, S. J., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Burger, B., Chiang, H. C., Contaldi, C. R., Crill, B. P., Doré, O., Farhang, M., Filippini, J. P., Fissel, L. M., Gandilo, N. N., Golwala, S. R., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Irwin, K. D., Jones, W. C., Kuo, C. L., MacTavish, C. J., Mason, P. V., Montroy, T. E., Morford, T. A., Netterfield, C. B., O'Dea, D. T., Rahlin, A. S., Reintsema, C. D., Ruhl, J. E., Runyan, M. C., Schenker, M. A., Shariff, J. A., Soler, J. D., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D.   +43 more
core   +2 more sources

Quantum Entanglement Distribution in Next-Generation Wireless Communication Systems

, 2016
In this work we analyze the distribution of quantum entanglement over communication channels in the millimeter-wave regime. The motivation for such a study is the possibility for next-generation wireless networks (beyond 5G) to accommodate such a ...
Hosseinidehaj, Nedasadat, Malaney, Robert   +1 more
core   +1 more source