21. |
- Kaiser, Thomas, et al.
(författare)
-
When will smart antennas be ready for the market? : Part I
- 2005
-
Ingår i: IEEE signal processing magazine (Print). - 1053-5888 .- 1558-0792. ; 22:2, s. 87-92
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This work aims to shed more light on the issue of why smart antennas haven't yet penetrated the market despite all the research efforts that have been put into the technology. The paper looks at this issue from various perspectives and subdivides the discussions into fixed or nomadic and high mobility applications because of the different types of markets, demands, and technological barriers.
|
|
22. |
- Kaiser, Thomas, et al.
(författare)
-
When will smart antennas be ready for the market? : Part II - results
- 2005
-
Ingår i: IEEE signal processing magazine (Print). - 1053-5888 .- 1558-0792. ; 22:6, s. 174-176
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this two-part forum is to shed more light on the future of smartantennas (SA) through discussions among a balanced group of experts from academia and industry. In part I, which appeared in the March 2005 issue of IEEE Signal Processing Magazine, each of the experts stated his own opinion after exchanging some thoughts by e-mail. Then, a panel session took place at ICAS-SP'05 and a public poll followed. Now, in part II, the results are summarized by the experts. The central topic of the forum was the expectedmarket breakthrough of SA.
|
|
23. |
|
|
24. |
|
|
25. |
- Kristensson, Martin, et al.
(författare)
-
Optimum Subspace Methods
- 2001
-
Ingår i: Signal Processing Advances in Communications. - : Prentice Hall. ; , s. 139-177
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
|
|
26. |
|
|
27. |
- Mowlér, Marc, et al.
(författare)
-
Capacity and Gain Analysis of a Reconfigurable MEMS Antenna
- 2008
-
Ingår i: Nordic Conference on Radio Science and Communications (RVK).
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper presents the investigation results on therecon¯gurable properties of an antenna array compris-ing of four feed elements and four parasitic elementsplaced on a ¯nite ground plane. This antenna is in-tended to improve the diversity gain for a Multiple In-put Multiple Output (MIMO) communication system.We intend to use a recon¯gurable antenna to com-bat the problem of signal deterioration in a handhelddevice so that it can get optimum signal strength inany orientation. With our presented antenna, we canachieve up to sixteen di®erent con¯gurations depend-ing on the requirement. The di®erent con¯gurationsare controlled with the help of RF switches which areimplemented using micro-electromechanical systems(MEMS). The recon¯gurable antenna was fabricatedand tested for its impedance and radiation character-istics and the results were found to be in reasonable agreement with the simulations. Channel measure-ments were made with the help of a MIMO test setup.
|
|
28. |
|
|
29. |
|
|
30. |
|
|