A low profile planar inverted-F antenna (PIFA) is proposed for mobile handset applications. The proposed antenna covers DCS-1800 & PCS-1900 bands. The antenna consists of a square planar element suspended above the FR4 dielectric substrate. The ground plane is on the bottom side of the substrate. Overall size of the antenna is 22*22*5.2 mm3 and is well suited for mobile handsets due to its low ...

Two design parameters, SNR and correlation, are key factors for enhancing channel capacity in MIMO systems. Achieving high SNR and low correlation is desirable in antenna design. This paper discusses the relation between channel capacity and these two parameters, and presents simple formulas of this relation for propagation channels and antenna coupling of mobile terminals. According to these g...

Introduction: Communication between mobile phones and antenna BTS (Base Transceiver station) is carried by electromagnetic waves that have energy, according to their nature. Increasing use of mobile phones because of the proliferation of antennas the concerns about them are proposed in society. In the present study the correlation between distance from the BTS antennas and the ...

In recent years, the trend in the mobile communications market has been towards thinner and mechanically more complex terminal devices, which are able to operate in several wireless systems. Due to this development, miniaturization and performance enhancement of internal mobile terminal antennas have become major challenges for the industry of the field. Not only should an internal antenna be s...

In this paper a multiple input multiple output (MIMO) radio channel measurement system is presented that utilizes several software defined radio (SDR) platforms at the transmitter and at the receiver. The system hardware buildup and its calibration technique are presented. The channel measurement results are afterwards exploited for a special antenna synthesis method that was already proofed by...

A new broadband multiple-input multiple-output (MIMO) antenna with good isolation and compact size is proposed. The proposed antenna consists of two G-shaped elements in the upper layer and two inverted L protrude branches and a T slot etched in ground which is used to reduce the mutual coupling. This planar antenna has a bandwidth of 100% with |S11| ≤ -10 dB from 2.26GHz to 6.78 GHz. The value...

Ultra-wideband (UWB) technique has become one of the most fascinating technologies with various antennas. It has the merits of high speed transmission rate, low power consumption and simple hardware configuration over conventional wireless communication systems. The research and development of the UWB systems including antennas have been widely performed [1-5]. Recently, UWB systems have focuse...

Godara, L. C. 1997 Application of antenna arrays to mobile communications, Part II: beam-forming and direction-of-arrival considerations, Proceedings of the IEEE, vol. 85, no. 8, 1195–1245. Bellofiore, S. , Balanis, C. A. , Foutz , J. and Spanias, A. S. 2002 Smart-antenna systems for mobile communication network, part 1, overview and antenna design, IEEE Antennas and Propagation Magazine, vol. ...

Smart phones owe some of their multimode, multiband capabilities to multithrow antenna switches. As mobile handsets evolve, a single antenna switch may handle as many as 10 transmit (Tx) and/or receive (Rx) ports. The challenges facing multithrow antenna switches for these applications are not trivial but, fortunately, solutions exist for managing high throw counts while still maintaining excel...

In the new generation of mobile communication systems, high data transmission rate and low bit error probability have been common requirements. However the issue of signal fading in a multi-path environment still stands as an major problem. Using antenna diversity techniques can overcome the problem. The main purpose of this thesis work is to implement receiver antenna diversity in a mobile ter...