Front-to-back ratio improvement of a short pyramidal horn antenna using metal strips/rods in LTE/cellular band
- Authors
- Lee, Kyoung-Joo; Oh, Soon-Soo; Lee, Young-Hwan; Kim, Young-Sik
- Issue Date
- 9-1월-2016
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Keywords
- horn antennas; Long Term Evolution; cellular radio; antenna radiation patterns; electromagnetic wave diffraction; front-to-back ratio improvement; pyramidal horn antenna; radiation characteristics monitoring; mobile base station; long term evolution; LTE; cellular band; metal strip; metal rods; edge diffraction control; outdoor measurement system; indoor measurement system; frequency 690 MHz to 960 MHz
- Citation
- IET MICROWAVES ANTENNAS & PROPAGATION, v.10, no.1, pp.111 - 118
- Indexed
- SCIE
SCOPUS
- Journal Title
- IET MICROWAVES ANTENNAS & PROPAGATION
- Volume
- 10
- Number
- 1
- Start Page
- 111
- End Page
- 118
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89816
- DOI
- 10.1049/iet-map.2015.0241
- ISSN
- 1751-8725
- Abstract
- This study presents a very short pyramidal horn antenna for monitoring the radiation characteristics of mobile base-station (BS) antennas operating in the long-term evolution (LTE)/cellular band. The proposed short pyramidal horn is integrated with metal strips/rods to overcome deficiencies of the shortened horn, especially in its front-to-back (F/B) ratio. The proposed short horn antenna improves the average F/B ratio by at least 8 dB in the frequency range from 690-960 MHz by controlling the edge diffraction. The total length of the antenna, including a waveguide flange, is only approximately 0.6 at 800 MHz. The proposed antenna also retains good characteristics such as a monotonically increasing gain, wide bandwidth, and a good purity of polarisation. The proposed antenna can replace the dipole antenna as a reference gain antenna for both indoor and outdoor measurement systems below the L-band.
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