LTE Communications and Networks

10Multimode Antennas for LTE Femtocells

Oluyemi Peter Falade¹, Xiaodong Chen² and Masood Ur Rehman³

¹ Tempfad Limited, Leyton, London, UK

² School of Electronic Engineering and Computer Science, Queen Mary, University of London, London, UK

³ School of Electronic Engineering and Computer Science, University of Bedfordshire, Luton, UK

The use of enabling technologies (such as highly innovative work in the electronics, sensors and photonics, robotics etc.) in recent years has brought a dramatic growth in wireless and satellite communications in radar systems and in terrestrial cellular and mobile satellite services. Multiple antennas are required to meet the diverse services provided by these devices. The small form factor of such devices makes it hard to integrate these several antennas as a result of space‐limited handheld terminals. Mutual coupling between the various antennas is also a challenging factor. A single multifunctional antenna operating at various multi‐frequency bands or broadband can overcome this problem efficiently. With the advent of the release 13 of LTE‐A, evolution towards 5G will bring up effective and credible applications in public safety, vehicular communication, multi‐cell broadcast and the internet‐of‐things. All these demand compact, cost effective, simple and highly efficient antennas.

In this chapter, requirements and challenges for multimode antennas supporting multifunctional compact handheld devices are explored. Design and analysis of two low ...