6533b825fe1ef96bd12830b9

RESEARCH PRODUCT

Reconfigurable dualband antenna module with integrated high voltage charge pump and digital analog converter

Erick Gonzalez-rodriguezArshad MehmoodMartun HovhannisyanYuliang ZhengHubertus BraunJing NingHolger MauneKlaus HofmannRolf JakobyLufei Shen

subject

EngineeringReconfigurable antennaDielectric resonator antennaDirectional antennabusiness.industryElectrical engineeringImpedance matchingSlot antennalaw.inventionCMOSlawCharge pumpAntenna (radio)business

description

Integration of a reconfigurable antenna module for handheld applications employing a set of novel technologies is demonstrated. A low profile dualband hybrid dielectric resonator antenna (DRA) based on glass-ceramics and a tunable matching network (TMN) based on ferroelectric varactors with a maximum biasing of 90V form a reconfigurable antenna module. The control of the antenna module is performed by a 120V CMOS high voltage (HV) charge pump with an 8-bit digital analog (D/A) converter generated from a 3.7V battery. Adaptive impedance matching at the lower band of 1.9 GHz is carried out by the TMN when the dualband antenna is exposed to different operation scenarios. Meanwhile, the upper band located at a frequency of 5.1 GHz exhibits an almost negligible influence due to the inherent detune resistance characteristic of the high permittivity DRA.

yearjournalcountryeditionlanguage
2014-04-01The 8th European Conference on Antennas and Propagation (EuCAP 2014)
https://doi.org/10.1109/eucap.2014.6902394