Coplanar waveguide periodic structures with resonant elements and their application in microwave filters

Characterization and applications of a compact CPW defected ground structure

“…One end of the slotline on each side of the signal line of the CPW is short-circuited, and the other end is coupled to the CPW signal line. Due to the meandered slots, this structure is more compact than other defected ground structures such as the radialshaped one in [7].…”

“…Recently, we have reported an investigation of CPW periodic structures with radial-shaped resonant elements on the ground plane for bandstop-filter applications [7]. In this paper, we discuss the characterization and applications of a new compact CPW defected ground structure, which is actually formed by a pair of meandered slotlines on the ground.…”

A Novel Stepped-Patch Loaded CPW and Its Application to a Low-Pass Filter

“…As known widely, a conventional DGS unit section in a microstrip line [1] or a coplanar waveguide(CPW) [2] is represented as a series-connected shunt L-C band-stop resonator. As another kind of a band-stop resonator, there exists a shunt-connected series L-C resonator which is dual to the former one.…”

Characterizing and Modeling Conductor-backed CPW Periodic Band Stop Filter with Miniaturized Size

“…Coplanar waveguide (CPW) has been proven to be more suitable than microstrip filters for monolithic microwave integrated circuits (MMICs) [1]- [4] and is extensively investigated. Compared to the normal CPW, the conductor backed CPW (CBCPW) [5]- [12] has the advantages of heat sinking ability, mechanical strength, additional circuit integration on its other side and lower characteristic impedance over the conventional CPW, and it seems attractive to be used in MMIC and radio frequency micro-electromechanical-systems (RF-MEMS) circuits [11].…”