论文信息 - A dual six-port with two-angle resolution and compact size for mobile terminals

A dual six-port with two-angle resolution and compact size for mobile terminals

A compact, low frequency wide-band, dual-angle resolution dual six-port design for direction finding (DF) systems within mobile terminals is proposed. This system covers the frequency band from 1.68 GHz to 2.25 GHz with a minimum bandwidth of 570 MHz. This relatively low frequency operation is unique to this design for DF, as most of the available design covers high frequency bands above 2 GHz. In addition, a major contribution of this optimized design is 40% reduction in the total area compared with the closest design. Moreover, the proposed system is distinctive as it is capable of finding the direction in both elevation and azimuth planes. This six-port design is realized on a dielectric substrate area of 65 × 65 × 1.28 mm3.

Mohammad S. Sharawi | Rifaqat Hussain

[1] Thomas Kailath,et al. ESPRIT-estimation of signal parameters via rotational invariance techniques , 1989, IEEE Trans. Acoust. Speech Signal Process..

[2] David Peavey,et al. The single channel interferometer using a pseudo-Doppler direction finding system , 1997, 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[3] R. Hammerle. Factors limiting the accuracy of Doppler and Adcock direction finding systems , 1989 .

[4] Tayeb A. Denidni,et al. Direction-of-arrival estimation method based on six-port technology , 2006 .

[5] Ziqiang Yang,et al. DESIGN AND IMPLEMENTATION OF A PRACTICAL DIRECTION FINDING RECEIVER , 2012 .

[6] R. O. Schmidt,et al. Multiple emitter location and signal Parameter estimation , 1986 .

[7] Renato G. Bosisio,et al. A direction-finding antenna system using an integrated six-port circuit , 1995 .

[8] T.A. Denidni,et al. A new beam direction finding circuit based on six port technology , 2005, IEEE MTT-S International Microwave Symposium Digest, 2005..

[9] R. Weigel,et al. Wide-range, dual six-port based Direction-Of-Arrival detector , 2012, 2012 The 7th German Microwave Conference.

[10] Ke Wu,et al. Ka-band analog front-end for software-defined direct conversion receiver , 2005, IEEE Transactions on Microwave Theory and Techniques.