A multiband power amplifier with a tunable transmission line for mobile LTE applications | Zendy

Lee G. | Zendy; Jung J. | Zendy; Song J. | Zendy

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A multiband power amplifier with a tunable transmission line for mobile LTE applications

Author(s) -

Lee G.,

Jung J.,

Song J.

Publication year - 2014

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.28286

Subject(s) - adjacent channel , amplifier , electrical engineering , umts frequency bands , electronic engineering , quadrature amplitude modulation , modulation (music) , microwave , engineering , channel (broadcasting) , telecommunications , physics , cmos , bit error rate , acoustics

A power amplifier (PA) for multiband applications implemented with a tunable load modulation technique is presented. The broadband output matching can be done by load modulation implemented by modification of the characteristic impedance (Z C ) of the tunable transmission line. The multiband PA delivered a gain of more than 10.5 dB, an adjacent‐channel‐leakage ratio of evolved UMTS terrestrial radio access adjacent channel leakage ratio (E‐UTRA) lower than −30 dBc, and a power added efficiency of 28–31% at the output power of 26‐dBm and the frequency range of 1.5–2.05 GHz with a 10‐MHz 16QAM long‐term evolution signal. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1175–1178, 2014

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