a compact frequency reconfigurable hybrid dra for lte/wimax applications
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ID: 185237
2017
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Abstract
A compact hybrid antenna structure with frequency reconfiguration capabilities is presented in this article. The proposed design employs a combination of a rectangular DR element and a coupling slot on the structure’s ground plane (GP). The slot shifts the fundamental DRA mode by introducing a slow wave effect and its resonant behavior helps to achieve an omnidirectional pattern at low frequencies. The slot is loaded with a series of PIN diode switches whose ON/OFF combinations alter the effective slot length. Slot loading with PIN diodes results in frequency reconfiguration of the proposed structure with a large tuning range of 76.2% (between 1.73 and 3.86 GHz). A parametric analysis was performed to investigate the effects of slot length, width, and position on the reflection coefficients of the proposed structure. A prototype of the proposed design was fabricated and results were measured. The measured results show a close agreement with the simulated ones. The proposed design is suitable for DCS 1800 MHz, PCS 1900 MHZ, UMTS, LTE 2500–2700 MHz, and Wimax 3.5 GHz.
| Reference Key |
aqeel2017internationala
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|---|---|
| Authors | ;Sajid Aqeel;M. R. Kamarudin;Aftab Ahmad Khan;Jawad Saleem;Jamal Nasir;Jalil-ur-Rehman Kazim;Owais Owais |
| Journal | american journal of physiology endocrinology and metabolism |
| Year | 2017 |
| DOI |
10.1155/2017/3607195
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| URL | |
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