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Active antenna

About: Active antenna is a research topic. Over the lifetime, 2246 publications have been published within this topic receiving 26493 citations.


Papers
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Patent
20 May 2015
TL;DR: In this article, the authors present an assessment and test system of a satellite positioning device, which consists of an antenna socket, a low-noise amplifier, a power divider, a SRS module group, a control unit, a clock module, a storage unit and a power conversion module.
Abstract: The embodiments of the utility model disclose an assessment and test system of a satellite positioning device The system comprises an antenna socket, a low-noise amplifier, a power divider, a satellite positioning module group, a control unit, a clock module, a storage unit and a power conversion module; the antenna socket is used to be connected with a multi-mode active antenna; and the low-noise amplifier is used to perform power amplification on a radio-frequency signal received by the antenna and to input the amplified radio-frequency signal into the power divider to be distributed into N paths of radio-frequency signals, the N paths of radio-frequency signals are input into the satellite positioning module groups, and obtained test data are stored in a storage unit via the control unit The assessment and test system of the satellite positioning device can acquire serial port output data of modules through simultaneous testing of satellite positioning modules in different schemes or different package in environment completely breaking away from a PC and manpower, and the serial port output data are stored and are supplied for reading and analysis by developers

1 citations

Patent
25 Jul 2007
TL;DR: In this article, a North Star Timing type one-piece receiving antenna, comprising a micro-strip antenna, a protective circuit, a first grade low noise amplifier, a band-pass optical filtering circuit, and a second grade low-noise amplifier circuit, was presented.
Abstract: The utility model discloses a North Star Timing type one-piece receiving antenna, comprising a micro-strip antenna, a protective circuit, a first grade low noise amplifier circuit, a band-pass optical filtering circuit and a second grade low noise amplifier circuit, wherein the micro-strip antenna is connected with the protective circuit, the protective circuit is connected with the first grade low noise amplifier circuit, the first grade low noise amplifier circuit is output and connected with a dielectric filter, and the dielectric filter is connected with the second grade low noise amplifier circuit. Seeing from the indicators, the utility model has the advantages that the number of North Star users is not bounded with one-way receiving; the receiving signal is sensitive with little time delay and suitable for timing satellite receiver with great compatibility; the utility model has active antenna with coaxial supply line and convenient utilization; the gain is high, the noise coefficient is low with the length of the supporting feeder line being 50 meters; the utility model has one-piece design, small volume, light weight and convenient installation; the utility model has anti-lightening protection and is secure and reliable.

1 citations

Proceedings ArticleDOI
01 Sep 2011
TL;DR: In this article, the results of modeling and optimization of receiving linear antenna arrays for THz continuous-wave imaging systems, which consist of antennas integrated with hot-electron bolometers on the basis of sensitive structures of CdHgTe (cadmium-mercury-tellurium) type as a detectors of signals, are presented.
Abstract: Results of modelling and optimization of receiving linear antenna arrays for THz continuous-wave imaging systems, which consist of antennas integrated with hot-electron bolometers on the basis of sensitive structures of CdHgTe (cadmium-mercury-tellurium) type as a detectors of signals, are presented.

1 citations

Proceedings ArticleDOI
Yi Wu1, Peter Butovitsch1
01 Sep 2014
TL;DR: The proposed active user detection and handling scheme could greatly help the communication retain ability of the impacted small cell users and avoid the unexpected radio link failure which leads to poor user experience.
Abstract: In this paper, we investigate the combination of active antenna and small cell for dynamic hotspot adaptation. The tidal effect of the user traffic is of our interest and we propose to use the advanced antenna technology for small cell coverage adaptation with a clever communication retain ability enhancement scheme. The proposed active user detection and handling scheme could greatly help the communication retain ability of the impacted small cell users and avoid the unexpected radio link failure which leads to poor user experience.

1 citations

Proceedings ArticleDOI
01 Jun 2015
TL;DR: This paper proposes a novel Active Antenna that has capability of frequency switching and the passive antenna with rectangular slot and frequency splitter is used to design the proposed AA.
Abstract: This paper proposes a novel Active Antenna (AA) has capability of frequency switching. The passive antenna with rectangular slot and frequency splitter is used to design the proposed AA. Two separate networks are designed at two separate frequencies and integrated with three port rectangular slot antenna. PIN Diode switches are used to switch between two networks for achieving frequency switching. The proposed antenna can be used for WLAN applications.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202148
2020113
2019123
201898
201789
2016102