The design method for the broadband compensation of the intrinsic dispersion of a Composite Right/Left-Handed (CRLH) transmission line is presented. The design is based on Cauer's method that is typically used for the design of microwave networks that must exhibit a specific input impedance profile over an arbitrary frequency band. Here, we consider a conventional microstrip CRLH-TL and the method is applied. The compensating network has been designed for linearizing the dispersion relation, keeping the left-handed propagation regime unaltered. The network consists of a series and shunt connections of inductors and capacitors, some of which exhibit negative value, meaning that a Non-Foster elements are required. When the compensating network is connected to CRLH-TL, a significant reduction of dispersion of broad band signal propagating through the line is achieved.
Brizzi, A., Ramaccia, D., Toscano, A., Bilotti, F. (2019). Broadband dispersion engineering of crlh transmission lines for low signal distortion in backward regime. In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings (pp.1399-1400). Institute of Electrical and Electronics Engineers Inc. [10.1109/APUSNCURSINRSM.2019.8888885].
Broadband dispersion engineering of crlh transmission lines for low signal distortion in backward regime
Brizzi A.;Ramaccia D.;Toscano A.;Bilotti F.
2019-01-01
Abstract
The design method for the broadband compensation of the intrinsic dispersion of a Composite Right/Left-Handed (CRLH) transmission line is presented. The design is based on Cauer's method that is typically used for the design of microwave networks that must exhibit a specific input impedance profile over an arbitrary frequency band. Here, we consider a conventional microstrip CRLH-TL and the method is applied. The compensating network has been designed for linearizing the dispersion relation, keeping the left-handed propagation regime unaltered. The network consists of a series and shunt connections of inductors and capacitors, some of which exhibit negative value, meaning that a Non-Foster elements are required. When the compensating network is connected to CRLH-TL, a significant reduction of dispersion of broad band signal propagating through the line is achieved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
