A one dimensional tunable periodic structure in microstip technology on gallium arsenide (GaAs) substrate is numerically investigated. The unit cell contains a number of patches positioned between the ground plane and the microstrip line. The patches, representing reactive loads, can be selectively short-circuited by externally-controlled FET switches integrated in the hosting substrate. The possibility of controlling the position of the band-gap, and implicitly the value of the e®ective dielectric constant along the line, for different combinations of the switches is demonstrated.
|Titolo:||Tunable periodic microstrip structure on GaAs wafer|
|Data di pubblicazione:||2009|
|Digital Object Identifier (DOI):||10.2528/PIER09091001|
|Appare nelle tipologie:||1.1 Articolo in rivista|