| Autor: |
Gregory Phillips, Carl Pfeiffer, Boris Tomasic, Thomas Steffen |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 IEEE International Symposium on Phased Array System & Technology (PAST). |
| Popis: |
An active electronically scanning array (AESA) architecture operating in the range of 20–60 GHz is reported. The transmit/receive (T/R) modules are distributed along parallel printed-circuit-board (PCB) cards, and each PCB card feeds a single column of the array. This architecture potentially provides space for integrating high power T/R modules within a A/2 element spacing at 60 GHz. Integrating linearly polarized antennas into the array is rather straightforward. More novel designs are also proposed for applications requiring circular polarization. A linear-to-circular polarizer is designed and fabricated that can be stacked onto a linearly polarized array for generating circular polarization. Alternatively, a tile-based antenna with integrated hybrid couplers is designed to directly radiate circular polarization. All arrays here are intended to radiate ~1 W/element. Therefore, thermal management becomes a serious challenge due to poor power amplifier efficiency and tight element spacing at mm-wave frequencies. Methods of integrating liquid cooling into the array are considered at the initial design stage. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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