RF FRONT-END CONSIDERATIONS FOR FUTURE MULTIBAND MOBILE TERMINALS

Hiroshi Okazaki, Takayuki Furuta, Kunihiro Kawai, Yuta Takagi, Shoichi Narahashi

2013

Abstract

A Radio Frequency (RF) front-end (RF-FE) is one of the keys in multi-mode and multi-band mode mobile terminals. In conventional cellular phones, multiple RF-FEs are installed for multi-band use. There have been a lot of studies of achieving multi-band or broadband circuits that comprise a compact and cost effective multi-band RF-FE with adequate RF performance. Reconfigurable or tunable RF-FEs are a way to provide multi-band function in future mobile terminals, which takes into consideration the capability to support a large number of wireless systems that use different frequency bands. However, the performance degradation should be considered if adaptive circuits are installed in the RF-FE. This paper presents considerations for the issues that might occur in a multi-band RF-FE for future mobile terminals. As an example, a concept of collaboration between a top RF filter and low-noise amplifier (LNA) is presented.

References

  1. Bezooijen, A., Mahmouji, R., Roermund, A., 2011. Adaptive RF Front-Ends for Hand-held Applications, Springer. Dordrecht/Heidelberg/London/New York.
  2. Hueber, G., Staszewski, R.B., (Ed.), 2011. MultiMode/Multi-Band RF Transceivers for Wireless Communications: Advanced Techniques, Architectures, and Trends, John Wiley & Sons, Inc. Hoboken, New Jersey.
  3. Fukuda, A., Furuta, T., Okazaki, H., Narahashi, S., Nojima, T., 2012. Low-Loss Matching Network Design for Band-Switchable Multi-Band Power Amplifier. IEICE Transactions on Electronics E95-C: 1172-1181.
  4. Darabi, H., 2007. A Blocker Filtering Technique for SAW-Less Wireless Receivers. IEEE Journal of SolidState Circuits, 42: 2766-2773.
  5. Okazaki, H., Fukuda, A., Kawai, K., Furuta, T., Narahashi, S., 2010. Reconfigurable amplifier towards enhanced selectivity of future multi-band mobile terminals. In International Microwave Workshop Series on RF Front-ends for Software Defined and Cognitive Radio Solutions, IEEE.
  6. Sahota, K., 2012. Coexistence Issues and Mitigation in Multi-Mode Band Cellular Radios, In International Microwave Symposium, Workshop WSG, IEEE.
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Paper Citation


in Harvard Style

Okazaki H., Furuta T., Kawai K., Takagi Y. and Narahashi S. (2013). RF FRONT-END CONSIDERATIONS FOR FUTURE MULTIBAND MOBILE TERMINALS . In Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS, ISBN 978-989-8565-57-0, pages 58-61. DOI: 10.5220/0004785300580061


in Bibtex Style

@conference{ictrs13,
author={Hiroshi Okazaki and Takayuki Furuta and Kunihiro Kawai and Yuta Takagi and Shoichi Narahashi},
title={RF FRONT-END CONSIDERATIONS FOR FUTURE MULTIBAND MOBILE TERMINALS},
booktitle={Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,},
year={2013},
pages={58-61},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004785300580061},
isbn={978-989-8565-57-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,
TI - RF FRONT-END CONSIDERATIONS FOR FUTURE MULTIBAND MOBILE TERMINALS
SN - 978-989-8565-57-0
AU - Okazaki H.
AU - Furuta T.
AU - Kawai K.
AU - Takagi Y.
AU - Narahashi S.
PY - 2013
SP - 58
EP - 61
DO - 10.5220/0004785300580061