Dual wide‐band miniaturized negative group delay circuit using open circuit stubs. Issue 2 (10th January 2018)

• Record Type: Journal Article
• Authors: Taher, Hany; Farrell, Ronan
• Is Part Of: Microwave and optical technology letters. Volume 60:Issue 2(2018:Feb.)
• Page Start: 428
• Page End: 432
• Publication Date: 2018-01-10
• Subjects: artificial neural networks (ANN) -- microstrip circuits -- negative group delay circuit (NGDC) -- open circuit stubs; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.30979
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: In this letter, dual band negative group delay circuit (DBNGDC) utilizing a couple of one quarter guided wave length ( λ g 4 ) open circuited stubs (OCSs) is presented. The centre frequencies ( f 01, 2 ) are fully controlled with the stub lengths. On the other hand, the target negative group delay (NGD) is obtained using couple of resistors ( R 1, 2 ) that connect each OCS to the main microstrip line. The designed DBNGDC accomplishes 52% size diminution compared with smallest size has ever been achieved before. Moreover, 0.2 and 0.4 GHz zero‐NGD bandwidths (BW) are achieved.