Výsledky vyhledávání - "Adcock antenna"

Design and System Characterization of Ultra-Wideband Antennas With Multiple Band-Rejection

Autor: Sajjad ur Rehman, Majeed A. S. Alkanhal

Publikováno v: IEEE Access, Vol 5, Pp 17988-17996 (2017)

This paper presents system modelling and characterization of multiple-band notched ultra-wideband (UWB) antennas using the singularity expansion method (SEM). Multiple-band notches in a classical UWB coplanar disc monopole antenna are achieved by int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a4190161a2af7f1381819d7d66986d5
https://doi.org/10.1109/access.2017.2715881

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DESIGN AND SIMULATION OF RADIO FREQUENCY SEEKER ANTENNA STABILIZATION

Autor: M Geetha Reddy

Publikováno v: International Journal of Research in Engineering and Technology. :361-364

Present day guided weapon systems, especially tactical class missiles use RF seeker, for target tracking towards terminal engagement. The seeker system including its antenna assembly will be onboard the missile. Due to the missile trajectory correcti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca02c1cf6385428307d6f9ca58838b9e
https://doi.org/10.15623/ijret.2016.0508060

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Assessment of Compliance With RF EMF Exposure Limits: Approximate Methods for Radio Base Station Products Utilizing Array Antennas With Beam-Forming Capabilities

Autor: Elif Degirmenci, Bjorn Thors, Christer Tornevik

Publikováno v: IEEE Transactions on Electromagnetic Compatibility. 58:1110-1117

The importance of antenna arrays with beam-forming capability is expected to increase in future mobile communication systems with the ongoing development of new radio access technologies involving higher frequency bands and massive MIMO concepts. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4ca56ab302648396a4d03c17ac7543e
https://doi.org/10.1109/temc.2016.2550611

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On‐body semi‐electrically‐small tag antenna for ultra high frequency radio‐frequency identification platform‐tolerant applications

Autor: Milan Polivka, Milan Svanda

Publikováno v: IET Microwaves, Antennas & Propagation. 10:631-637

In this study, the authors proposed the impedance-flexible on-body semi-electrically-small tag antenna for the European ultra-high frequency radio-frequency identification (UHF RFID) frequency band. The radiator is based on differentially-fed coupled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::490a23f470ff422e433f1b456b6a44be
https://doi.org/10.1049/iet-map.2015.0398

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Robust direction of arrival estimate method in FM‐based passive bistatic radar with a four‐element Adcock antenna array

Autor: Wang Jun, Lv Xiao-Yong, Wang Jue

Publikováno v: IET Radar, Sonar & Navigation. 9:392-400

This study examines the problem of direction of arrival (DOA) estimation in FM-based passive bistatic radar using a four-element Adcock antenna array. The authors investigate the influence of the target echo, involved in the reference signal, on the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::308411a69f4acf7c2de55826bc8fc636
https://doi.org/10.1049/iet-rsn.2014.0270

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Near vertical incidence skywave propagation: Elevation angles and optimum antenna height for horizontal dipole antennas

Autor: Roel Schiphorst, Erik van Maanen, Cornelis H. Slump, George J. Petersen, Ben A. Witvliet, Albert J. Westenberg, Mark J. Bentum

Publikováno v: IEEE antennas and propagation magazine, 57(1), 129-146. IEEE

Near Vertical Incidence Skywave (NVIS) communication uses the ionosphere as a reflector to cover a continuous area with a radius of at least 150 km around the transmitter, on frequencies typically between 3 and 10 MHz. In developing countries, in are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b2fb1f6851c86f07e6aba1fe4f9867c
https://doi.org/10.1109/map.2015.2397071

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Optimum Single Antenna Full Duplex Using Hybrid Junctions

Autor: Kevin A. Morris, Leo Laughlin, Mark A Beach, John L. Haine

Publikováno v: Laughlin, L, Beach, M A, Morris, K A & Haine, J L 2014, ' Optimum single antenna full duplex using hybrid junctions ', IEEE Journal of Selected Areas in Communications, vol. 32, no. 9, 6832460, pp. 1653-1661 . https://doi.org/10.1109/JSAC.2014.2330191

This paper investigates electrical balance (EB) in hybrid junctions as a method of achieving transmitter-receiver isolation in single antenna full duplex wireless systems. A novel technique for maximizing isolation in EB duplexers is presented, and w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e83abfafbee230d306b92c0cb3c3e2d1
https://doi.org/10.1109/jsac.2014.2330191

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Multiple-Antenna Interference Channels With Real Interference Alignment and Receive Antenna Joint Processing Based on Simultaneous Diophantine Approximation

Autor: Mahdi Zamanighomi, Zhengdao Wang

Publikováno v: IEEE Transactions on Information Theory. 60:4757-4769

In this paper, the degrees of freedom (DoF) regions of constant coefficient multiple antenna interference channels are investigated. First, we consider a K-user Gaussian interference channel with Mk antennas at transmitter k, 1 ≤ k ≤ K, and N j a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aaf0f40488a45388fda6a9b2eeef3720
https://doi.org/10.1109/tit.2014.2327212

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