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- Title
Wideband ceiling mount omnidirectional antenna for indoor distributed antenna system applications.
- Authors
Lei Zhou; Yong-Chang Jiao; Yhong Qi; Zbin Weng; Tao Ni
- Abstract
A wideband omnidirectional vertical polarised antenna is presented. By incorporating a shorted coupling top loading structure over two cross-connected monopole antennas, an enhanced impedance bandwidth of 152% is achieved. The prototype antenna operates from 650 to 4500 MHz, with a reflection coefficient <-15 dB, a 2-6 dBi antenna gain with a very stable vertical radiation pattern and <3.5 dB horizontal pattern ripples. The proposed antenna can be widely used in indoor distributed antenna systems (DASs), such as GSM900, GSM1800, UMTS2100 and the enhanced TD-LTE (up to 3.5 GHz) bands. The simulated and the measured return loss and radiation pattern results show good agreement.
- Subjects
OMNIDIRECTIONAL antennas; ANTENNAS (Electronics); BROADBAND communication systems; BANDWIDTHS; DIGITAL communications
- Publication
Electronics Letters (Wiley-Blackwell), 2014, Vol 50, Issue 4, p253
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2013.3603