INTEGRATED MICROWAVE-MILLIMETER WAVE ANTENNA SYSTEM WITH ISOLATION ENHANCEMENT MECHANISM
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United States of America Patent
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Nov 12, 2015
filing date -
Nov 12, 2015
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Abstract
The integrated microwave-millimeter wave antenna system with isolation enhancement mechanism is a planar, compact, multi-band microwave multiple-input-multiple-output (MIMO) antenna system integrated with a millimeter wave antenna array. The microwave MIMO antenna system covers multiple standards between (700-6000) MHz, while the millimeter wave array covers a wider bandwidth of at least 1 GHz with a center frequency ranging from 28-38 GHz. The millimeter wave antenna array is based on slot antenna elements and acts as an isolation enhancement structure to the microwave MIMO antenna system. It acts as a defected ground structure that improves port isolation of the MIMO antenna system. This dual functionality within a small form factor wireless device is highly desirable, as space is very limited. The system is for beyond 4G wireless standards.
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