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High Bandwidth Microstrip Patch Antenna

Design suitable for retrofit or new constructs. Maintain device footprint & other important performance factors.


The Naval Undersea Warfare Center Division Newport (NUWCDIVNPT) has developed and tested a microstrip patch antenna that increased the bandwidth of the prototyped GPS antenna from a typical 2-5% to 20-25%; the upper limit for other frequencies has not been determined. The key to this innovation is the use of a highly anisotropic superstrate layer that can be placed over an existing patch antenna as a retrofit or incorporated into new systems. Proper design of the superstrate layer and the correct orientation of its polarization layer enable broader bandwidth capabilities for a given antenna. The results include the ability to work over a broader range of frequencies and increases in potential channel bandwidth from an existing antenna without increasing the footprint of the device.

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