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Design and optimization of LTE 1800 MIMO antenna
Huey Shin Wong1, Mohammad Tariqul Islam2, Salehin Kibria1
1Center for Space Science, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Malaysia.
Thescientificworldjournal
|June 27, 2014
Summary
A novel multiple-input multiple-output (MIMO) antenna combines microstrip and double-L sleeve monopole designs for LTE 1800 applications. This innovative antenna achieves excellent isolation, high efficiency, and omnidirectional characteristics for wireless communication.
Area of Science:
- Electrical Engineering
- Antenna Theory
- Wireless Communications
Background:
- Modern wireless systems require compact, high-performance antennas.
- LTE 1800 band necessitates antennas with specific frequency and radiation characteristics.
- Multiple-Input Multiple-Output (MIMO) technology enhances wireless communication reliability and data rates.
Purpose of the Study:
- To design and evaluate a novel MIMO antenna for LTE 1800 applications.
- To achieve high isolation and efficiency using a compact antenna structure.
- To validate the antenna's omnidirectional radiation pattern and gain.
Main Methods:
- Integration of a printed microstrip antenna and a printed double-L sleeve monopole antenna.
- Utilizing a 50-ohm coplanar waveguide (CPW) feed for the monopole antenna.
- Employing a novel T-shaped microstrip feedline on the reverse PCB side to excite the waveguide's outer shell.
- Performance analysis including isolation, efficiency, gain, and radiation pattern measurements.
Main Results:
- The proposed MIMO antenna operates effectively within the LTE 1800 frequency band (1710 MHz-1880 MHz).
- Achieved isolation characteristics better than -15 dB between antenna elements.
- Demonstrated omnidirectional radiation characteristics.
- Exhibited antenna efficiency greater than 70% and a high gain of 2.18 dBi.
Conclusions:
- The presented MIMO antenna design is suitable for LTE 1800 wireless applications.
- The novel feeding mechanism and antenna integration provide excellent performance metrics.
- The antenna's characteristics meet the demanding requirements for advanced wireless communication systems.
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