Low-Cost Fabrication Approaches for Ultra-Wideband Tightly Coupled Dipole Arrays

Authors

md rakibul islam, Florida International UniversityFollow

Document Type

Dissertation

Degree

Doctor of Philosophy (PhD)

Major/Program

Electrical and Computer Engineering

First Advisor's Name

John L. Volakis

First Advisor's Committee Title

Co-Committee Chair

Second Advisor's Name

Satheesh B. Venkatakrishnan

Second Advisor's Committee Title

Co-Committee Chair

Third Advisor's Name

Elias A. Alwan

Third Advisor's Committee Title

Committee Member

Fourth Advisor's Name

Markondeyaraj Pulugurtha

Fourth Advisor's Committee Title

Committee Member

Keywords

antenna array, Tightly coupled, TCDA, FSS, millimeter-wave, foldable, wideband

Date of Defense

3-16-2023

Abstract

Low-Cost Fabrication Approaches for Ultra-Wideband Tightly Coupled Dipole This dissertation presents novel fabrication approaches of Ultra-Wideband (UWB) apertures for modern wireless communications. Among the presented designs in this dissertation, first design shows the foldability and convenient deployability of a UWB tightly coupled dipole array (TCDA) with 5.4 :1 bandwidth and low-angle scanning capability. Notably, the foldability was achieved by designing a planar microstrip balun feed and integrating an in-plane folding mechanism called the lamina emergent torsion (LET) joint. Further, to meet the demand for high-data-rate modern 5G/6G communications, a UWB millimeter-Wave phased array design is presented, which operates across S-band to millimeter-Wave band at 40 GHz. This millimeter-Wave array design showed a new approach to the fabrication of UWB array, which overcomes the existing millimeter-Wave fabrication challenges by adopting a hybrid approach that includes two steps: i) fabrication of the antenna elements and feed on PCB board and ii) assembly of the array using a 3D printed structure. Herein presented low-cost, unique fabrication approaches of UWB antenna arrays and their prototype characterization techniques, along with the calibration for eliminating any possibility of measurement errors, are outstanding and significant contributions to the future development of UWB arrays.

Identifier

FIDC011054

ORCID

0000-0002-2770-6885

Previously Published In

M. R. Islam, M. Carvalho, S. B. Venkatakrishnan and J. L. Volakis, "Packable and Readily Deployable Tightly Coupled Dipole Array (TCDA) With Integrated Planar Balun," in IEEE Open Journal of Antennas and Propagation, vol. 3, pp. 1206-1217, 2022, doi: 10.1109/OJAP.2022.3214301.

Recommended Citation

islam, md rakibul, "Low-Cost Fabrication Approaches for Ultra-Wideband Tightly Coupled Dipole Arrays" (2023). FIU Electronic Theses and Dissertations. 5280.
https://digitalcommons.fiu.edu/etd/5280