Gain-Enhanced On-Chip Folded Dipole Antenna Utilizing Artificial Magnetic Conductor at 94 GHz
| Autor: | Mahmoud Nafe, Ahad Syed, Atif Shamim |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Loop antenna business.industry 020208 electrical & electronic engineering Antenna measurement 020206 networking & telecommunications 02 engineering and technology Antenna factor Radiation pattern law.invention law 0202 electrical engineering electronic engineering information engineering Optoelectronics Dipole antenna Electrical and Electronic Engineering Antenna (radio) business Monopole antenna Ground plane |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 16:2844-2847 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2017.2749308 |
| Popis: | On-chip antennas suffer from low gain values and distorted radiation patterns due to the lossy and high permittivity Si substrate. An ideal solution would be to isolate the lossy Si substrate from the antenna through a perfect electric conductor ground plane. However, the typical CMOS stack up that has multiple metal layers embedded in a thin oxide layer does not permit this. In this letter, an artificial magnetic conductor (AMC) reflecting surface has been utilized to isolate the Si substrate from the antenna. Contrary to the previous reports, the AMC structure is completely embedded in the thin oxide layer with the ground plane above the Si substrate. In this approach, the AMC surface acts for the first time as both a reflector and a silicon shield. As a result, the antenna radiation pattern is not distorted and its gain is improved by 8 dB. The fabricated prototype demonstrates good impedance and radiation characteristics. |
| Databáze: | OpenAIRE |
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