Closely-packed UWB MIMO/diversity antenna with different patterns and polarizations for USB dongle applications
(2012) In IEEE Transactions on Antennas and Propagation 60(9). p.4372-4380- Abstract
- A closely-packed ultrawideband (UWB) multiple- input multiple-output (MIMO)/diversity antenna (of two elements) with a size of 25 mm by 40 mm is proposed for USB dongle applications. Wideband isolation can be achieved through the different patterns and polarizations of the two antenna elements. Moreover, the slot that is formed between the monopole and the ground plane of the half slot antenna is conveniently used to further enhance the isolation at the lower frequencies and to provide an additional resonance at one antenna element in order to increase its bandwidth. The underlying mechanisms of the antenna’s wide impedance bandwidth and low mutual coupling are analyzed in detail. Based on the measurement results, the proposed antenna can... (More)
- A closely-packed ultrawideband (UWB) multiple- input multiple-output (MIMO)/diversity antenna (of two elements) with a size of 25 mm by 40 mm is proposed for USB dongle applications. Wideband isolation can be achieved through the different patterns and polarizations of the two antenna elements. Moreover, the slot that is formed between the monopole and the ground plane of the half slot antenna is conveniently used to further enhance the isolation at the lower frequencies and to provide an additional resonance at one antenna element in order to increase its bandwidth. The underlying mechanisms of the antenna’s wide impedance bandwidth and low mutual coupling are analyzed in detail. Based on the measurement results, the proposed antenna can cover the lower UWB band of 3.1-5.15 GHz, and within the required band, the isolation exceeds 26 dB. The gains and total efficiencies of the two antenna elements are also measured. Furthermore, a chassis mode can be excited when a physical connection is required between the ground planes of the two antenna elements. Without affecting the performance of the half slot element, the monopole can now cover the band of 1.78-3 GHz, apart from the UWB band. The proposed antenna structure is found to provide good MIMO/diversity performance, with very low envelope correlation of less than 0.1 across the UWB band. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2493189
- author
- Zhang, Shuai LU ; Lau, Buon Kiong LU ; Sunesson, Anders LU and He, Sailing
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IEEE Transactions on Antennas and Propagation
- volume
- 60
- issue
- 9
- pages
- 4372 - 4380
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000308460600037
- scopus:84866089071
- ISSN
- 0018-926X
- DOI
- 10.1109/TAP.2012.2207049
- project
- EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
- language
- English
- LU publication?
- yes
- id
- 5c34da93-4c93-4a7e-b704-477fc24f4ac0 (old id 2493189)
- date added to LUP
- 2016-04-01 13:32:51
- date last changed
- 2022-05-07 17:44:59
@article{5c34da93-4c93-4a7e-b704-477fc24f4ac0, abstract = {{A closely-packed ultrawideband (UWB) multiple- input multiple-output (MIMO)/diversity antenna (of two elements) with a size of 25 mm by 40 mm is proposed for USB dongle applications. Wideband isolation can be achieved through the different patterns and polarizations of the two antenna elements. Moreover, the slot that is formed between the monopole and the ground plane of the half slot antenna is conveniently used to further enhance the isolation at the lower frequencies and to provide an additional resonance at one antenna element in order to increase its bandwidth. The underlying mechanisms of the antenna’s wide impedance bandwidth and low mutual coupling are analyzed in detail. Based on the measurement results, the proposed antenna can cover the lower UWB band of 3.1-5.15 GHz, and within the required band, the isolation exceeds 26 dB. The gains and total efficiencies of the two antenna elements are also measured. Furthermore, a chassis mode can be excited when a physical connection is required between the ground planes of the two antenna elements. Without affecting the performance of the half slot element, the monopole can now cover the band of 1.78-3 GHz, apart from the UWB band. The proposed antenna structure is found to provide good MIMO/diversity performance, with very low envelope correlation of less than 0.1 across the UWB band.}}, author = {{Zhang, Shuai and Lau, Buon Kiong and Sunesson, Anders and He, Sailing}}, issn = {{0018-926X}}, language = {{eng}}, number = {{9}}, pages = {{4372--4380}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Antennas and Propagation}}, title = {{Closely-packed UWB MIMO/diversity antenna with different patterns and polarizations for USB dongle applications}}, url = {{https://lup.lub.lu.se/search/files/42856142/zhang_tap2012b.pdf}}, doi = {{10.1109/TAP.2012.2207049}}, volume = {{60}}, year = {{2012}}, }