PROBLEM TO BE SOLVED: To provide a method, structure and design structure for an impedance-optimized microstrip transmission line for multi-band and ultra-wide band applications, capable of overcoming defects, wherein conventional microstrip transmission lines normally do not exhibit a relatively constant characteristic impedance over a wide range of signal frequencies.;SOLUTION: The method includes: forming a plurality of openings in a ground plane associated with a signal line; forming a plurality of capacitance plates in the plurality of openings; and connecting the plurality of capacitance plates to the signal line with a plurality of posts extending between the signal line and the plurality of capacitance plates.;COPYRIGHT: (C)2011,JPO&INPIT
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