Basak Ak OzbakisSerdar OkuyucuMustafa SeçmenKorkut YeǧinOzbakis, BasakSecmen, MustafaYegin, KorkutOkuyucu, SerdarW.C. Chew , S. He , S. He2025-10-0620179781618390530, 9781629939513, 9781934142240, 9781728172477, 9781509062690, 9781618390523, 9781934142288, 9781934142226, 9781617827785, 9781538612118978150906269015599450, 193173601559-945010.1109/PIERS.2017.82618782-s2.0-85044935184https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044935184&doi=10.1109%2FPIERS.2017.8261878&partnerID=40&md5=13c530b379edefd58db01e2a1e3c33dehttps://gcris.yasar.edu.tr/handle/123456789/9683https://doi.org/10.1109/PIERS.2017.8261878The progress shown in mobile phone technology in dealing with multiple band transmission and high data transmission rates has been followed by an increased demand in favor of rich content mobile services and new functionalities. To provide these services multi-band and wide-band antennas have to be integrated into the compact structure of modern mobile phones. In this paper as part of the results of a research project we propose a multi-band frequency reconfigurable main antenna along with a receive diversity antenna for use in 4G (4th generation) mobile terminals. The main antenna is a Planar Inverted F Antenna (PIFA) mounted on bottom of the mobile phone and grounded by a variable reactance for operation in 790-960 MHz and 1710-2690 bands covering GSM DCS PCS and UMTS standards. The receive diversity antenna on the other hand is a monopole antenna to be operated in the 1710-2690 MHz band. Use of LDS (laser direct structuring) structure in both antennas are proposed for fine-tuning of their response. Simulated frequency responses of reflection coefficients and radiation patterns of the prototype antennas are given. © 2018 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessCellular Telephone Systems, Cellular Telephones, Frequency Response, Global System For Mobile Communications, Injection Molding, Microstrip Antennas, Mobile Antennas, Mobile Phones, Mobile Telecommunication Systems, Monopole Antennas, Telephone Sets, Wireless Telecommunication Systems, Data Transmission Rates, Frequency Reconfigurable, Laser Direct Structuring, Mobile Phone Applications, Mobile Phone Technology, Multi-band Frequencies, Planar Inverted-f Antenna, Prototype Antennas, Directional Patterns (antenna)Cellular telephone systems, Cellular telephones, Frequency response, Global system for mobile communications, Injection molding, Microstrip antennas, Mobile antennas, Mobile phones, Mobile telecommunication systems, Monopole antennas, Telephone sets, Wireless telecommunication systems, Data transmission rates, Frequency reconfigurable, Laser direct structuring, Mobile phone applications, Mobile phone technology, Multi-band frequencies, Planar inverted-F antenna, Prototype antennas, Directional patterns (antenna)Conference Object