The 4th Generation of mobile communications (4G) came with new challenges on the antenna bandwidth and on the front-end architecture of mobile phones. This letter proposes a novel architecture overcoming these challenges. It includes narrow-band tunable antennas, co-designed with a tunable Front- End (FE). Simulations and measurements demonstrate the concept for low and high bands of the LTE frequency spectrum.
I E E E Antennas and Wireless Propagation Letters, 2013, Vol 12, Issue 1, p. 1676-1679