A Novel Small CPW-fed T-shaped Antenna for Mimo System Applications

Chen, Y. B.; Jiao, Yong‐Chang; Zhang, F. S.; Gao, Hongmin

doi:10.1163/156939306779322774

Cited by 13 publications

(8 citation statements)

References 5 publications

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“…The multiple-input and multiple-output (MIMO) systems have become an increasingly important research area in wireless communication society, and the capacity of MIMO systems has been intensively investigated [e.g., [37][38][39][40][41]. In this paper, an attempt has been made to bridge the gap between information theory and electromagnetic theory, and the MIMO channel capacity has been studied from the electromagnetic point of view.…”

Section: Resultsmentioning

confidence: 99%

Multi-Antenna Information Theory

Geyi¹

2007

PIER

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Abstract-It is well known that the performance of a wireless multiple-input and multiple-output (MIMO) system depends on the propagation channel. The propagation channel models can generally be divided into two different groups, the statistical models based on information theory and the site-specific models based on measurement or ray tracing. In this paper, a general procedure for predicting the MIMO channel model has been presented. Analytical expressions for the channel matrix elements in a general scattering environment have been derived from the statistical theory for a narrow-band electromagnetic field, and have been verified by numerical simulation and experiments. The limitations of information capacity of the MIMO wireless communication system imposed by the antennas have also been discussed, and analytical upper bounds on the information capacity in terms of the antenna parameters for multiple antenna system in free space have been obtained. Once the capacity of a MIMO system is specified, these upper bounds can serve as a criterion for estimating how many antennas are needed or how big the antenna must be to achieve the capacity.

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Section: Resultsmentioning

confidence: 99%

Multi-Antenna Information Theory

Geyi¹

2007

PIER

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“…For the sum beam, the electric field in the aperture with the modes T E 10 , T E 30 , T E 12 /T M 12 can be excited as below [22],…”

Section: Choice Of Modes For the Horn Antennamentioning

confidence: 99%

“…For communication systems, the inverse monopulse would deal with the problem of multiple access while sending signals with the multibeam antenna. With the development of multiple-input multiple-output (MIMO) systems, multiple antennas have the potential to dramatically improve the performance of communication and radar systems [3][4][5][6][7][8][9][10][11][12][13][14]. Moreover, transmitting signals with the sum and difference multibeams can modulate the spatial parameter into microwave field, which is convenient to extract azimuth and elevation information at the receiver with only an antenna.…”

Section: Introductionmentioning

confidence: 99%

Sum and Difference Multiple Beam Modulation Transmitted by Multimode Horn Antenna for Inverse Monopulse Direction-Finding

Song¹,

Hong²

2008

PIER

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Abstract-The sum and difference multiple channels were usually applied to the monopulse system only in a receiver. But this paper presents a technique of multiple beam modulation transmitted by the sum and difference multiple channels. The modulated field is designed as three chip signal vectors whose sum and whose differences are controlled by the gains of antennas, and the angle between the sum vector and the differential vector depends on the phase error between the channels so that the different microwave signals can be transmitted in the different directions. A receiver with single-antenna can extract azimuth and elevation with respect to the transmitter. Simulation results show that the proposed modulation system has been successfully designed to integrate digital communication with direction-finding in the way of the reverse monopulse.

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“…The use of multiple input multiple output (MIMO) system is one of the effective ways for improving reliability and increasing the capacity of the wireless channel [1][2][3][4][5][6][7][8][9]. Since the capacity of wireless channel is greatly affected by the mutual coupling between the antenna elements [10], antenna design for such systems plays a critical role because of the needs to exhibit distinguishable scattering characteristics among antennas in their specific radiating wave propagations.…”

Section: Introductionmentioning

confidence: 99%

Investigations of Isolation Improvement Techniques for Multiple Input Multiple Output (Mimo) Wlan Portable Terminal Applications

Chou

Cheng

Hsu

et al. 2008

PIER

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Abstract-Various isolation improvement techniques for MIMO WLAN card bus applications consisted of three closely spaced loop antennas are presented and investigated both numerically and experimentally in this paper. The proposed techniques are easily implemented and proven effective to achieve high isolation among the antennas which is a must for MIMO terminals to receive uncorrelated signals with good system throughputs.

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A Novel Small CPW-fed T-shaped Antenna for Mimo System Applications

Cited by 13 publications

References 5 publications

Multi-Antenna Information Theory

Multi-Antenna Information Theory

Sum and Difference Multiple Beam Modulation Transmitted by Multimode Horn Antenna for Inverse Monopulse Direction-Finding

Investigations of Isolation Improvement Techniques for Multiple Input Multiple Output (Mimo) Wlan Portable Terminal Applications

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