A compact dispersive delay line using microstrip lines and opened slot lines - Details

author：

Li, Yujie (Li, Yujie.) ^[1] | Yuan, Jiade (Yuan, Jiade.) ^[2] (Scholars：袁家德) | Wu, Shiji (Wu, Shiji.) ^[3] | Xu, Zhimeng (Xu, Zhimeng.) ^[4] (Scholars：许志猛)

Indexed by：

EI Scopus

Abstract：

A　dispersive　delay　line　(DDL)　with　compact　size,　good　group　delay,　and　all　pass　response　in　200–800　MHz　band　is　presented.　The　proposed　DDL　is　composed　of　a　main　microstrip　transmission　line　with　two　shunted　open　stubs　and　two　complementary　slot　lines,　and　a　coupling　slot　line　in　ground　plane.　The　length　of　the　complementary　slot　line　is　reduced　approximately　from　λg　/2　to　λg　/4　through　the　upper　end　being　opened,　hence　achieves　miniaturization　for　the　proposed　DDL　(λg　is　the　guided　wavelength　at　the　center　frequency).　The　overall　area　is　0.196　×　0.093λ2g　with　a　peak　group　delay　time　of　3.2　ns.　The　proposed　DDL　has　the　advantages　of　compactness,　good　capability,　and　easy　fabrication　without　any　external　matching　network.　©　2019,　Electromagnetics　Academy.　All　rights　reserved.

Keyword：

Dispersion (waves) Group delay Microstrip lines

Community：

[ 1 ] [Li, Yujie]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
[ 2 ] [Yuan, Jiade]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
[ 3 ] [Wu, Shiji]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
[ 4 ] [Xu, Zhimeng]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China