Multiple input multiple output dielectric resonator antenna for long term evolution applications
Also available in printed version : TK7872.D53 S58 2015 raf
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| Format: | Master's thesis |
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Universiti Teknologi Malaysia
2025
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| Online Access: | https://utmik.utm.my/handle/123456789/101686 |
| Abstract | Abstract here |
| _version_ | 1854975081082519552 |
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| author | Siti Fairuz Roslan |
| author2 | Muhammad Ramlee Kamarudin, supervisor |
| author_facet | Muhammad Ramlee Kamarudin, supervisor Siti Fairuz Roslan |
| author_sort | Siti Fairuz Roslan |
| description | Also available in printed version : TK7872.D53 S58 2015 raf |
| format | Master's thesis |
| id | utm-123456789-101686 |
| institution | Universiti Teknologi Malaysia |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-1016862025-08-21T03:49:30Z Multiple input multiple output dielectric resonator antenna for long term evolution applications Siti Fairuz Roslan Muhammad Ramlee Kamarudin, supervisor Dielectric resonators Antennas (Electronics) Also available in printed version : TK7872.D53 S58 2015 raf Wireless communications have been part of human life where people can communicate worldwide with very high speed through the use of new technology known as Long Term Evolution (LTE). LTE is an evolution in wireless communication system which is capable of providing high data rates and high speed transmission. In addition, a multiple input multiple output (MIMO) technology enables wireless communication systems to achieve high data rates and high quality of services by placing multiple antennas at transmitter and receiver. Multiple antennas should be designed to have good isolation even when closely spaced. A ceramic material with several attractive features which is called a dielectric resonator (DR) is used as a radiation element in this thesis. This thesis presents three designs of dielectric resonator antenna (DRA) that operate at 2.6 GHz for LTE applications. Firstly, a coplanar waveguide (CPW) rectangular DRA (RDRA) without and with metallic strip has been designed. The measured impedance bandwidths (BWs) for CPW RDRA without and with metallic strip for S11 < -6 dB are 45% and 66%, respectively. The gains obtained for CPW RDRA without and with a metallic strip are 2.92 dBi and 3.12 dBi, respectively. Secondly, an MIMO F-shaped DRA is designed. The measured impedance BWs for S11 < -6 dB are 36% for port 1 and 31% for port 2, respectively with S21 = 33 dB. The antenna provides gain of 1.99 dBi for port 1 and 1.85 dBi for port 2. Lastly, an MIMO RDRA is designed. Two orthogonal modes of the MIMO RDRA are excited by using two different feed mechanisms which is CPW and coaxial probe. The measured impedance BWs for S11 < -6 dB are 47% for port 1 and 25% for port 2, respectively with S21 = 33 dB. The antenna provides gain of 4.97 dBi for port 1 and 4.51 dBi for port 2. Then, the third design was extended by using higher relative permittivity value of DR in order to reduce the antenna size. It can be seen, both second and third designs produced correlation coefficient well below 0.5 with nearly 10 dB diversity gain. A reasonable agreement between the simulated and measured results has been achieved atiff UTM 118 p. Thesis (Sarjana Kejuruteraan (Elektrik)) - Universiti Teknologi Malaysia, 2015 2025-04-10T04:53:57Z 2025-04-10T04:53:57Z 2015 Master's thesis https://utmik.utm.my/handle/123456789/101686 valet-20160314-174252 vital:84905 Closed Access UTM Complete Unpublished application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Dielectric resonators Antennas (Electronics) Siti Fairuz Roslan Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| thesis_level | Master |
| title | Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| title_full | Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| title_fullStr | Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| title_full_unstemmed | Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| title_short | Multiple input multiple output dielectric resonator antenna for long term evolution applications |
| title_sort | multiple input multiple output dielectric resonator antenna for long term evolution applications |
| topic | Dielectric resonators Antennas (Electronics) |
| url | https://utmik.utm.my/handle/123456789/101686 |
| work_keys_str_mv | AT sitifairuzroslan multipleinputmultipleoutputdielectricresonatorantennaforlongtermevolutionapplications |