Design and Implementation of Dual-Band Circularly Polarized Antennas Using Stacked Patches
, , , oraz | 01 wrz 2017
O artykule
Data publikacji: 01 wrz 2017
Zakres stron: 87 - 100
Otrzymano: 27 maj 2017
Przyjęty: 15 cze 2017
DOI: https://doi.org/10.21307/ijssis-2017-238
© 2017 S Sankaranarayanan et al., published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Single and Dual feed Antennas with dual frequencies have been demonstrated. Varactor diodes are used for independent tuning. The PIFA (Planar Inverted F-Antenna) has two frequencies from 0.7 to 1.1 GHz and from 1.7 to 2.3GHz. Impedance match of about -10dB an isolation greater than 13dB is obtained. The single feed antenna can be tuned from 1.2 to 1.6GHz and 1.6 to 2.3 GHz. The antenna volumes are 63x100x3.15 mm3 with relative permittivity is 3.55 substrates. The efficiency varies from 25% to 50% over tuning range. The application areas are in 4G wireless systems.