As the demand grows for circuits serving available frequency spectrum in the mmWave range, circuit designers are meeting those demands using newer low loss circuit materials or hybrid circuits composed of multiple layers of dissimilar circuit materials, such as very low loss circuit materials for higher-speed, higher-frequency circuits and more cost effective circuit materials such as FR-4 for functions such as ground planes, power planes, and control lines not requiring such low loss circuit material.
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Edward Teyssier: You mention that "After all, I...
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