Ultra-wideband microstrip to CB-CPW transition applied to broadband filter

High-frequency electromagnetic properties of epitaxial Bi2FeCrO6 thin films grown by pulsed laser deposition

“…15 The transition structure is characterized by a wide-band operating in the 1-16 GHz frequency range. 16 8722ES network analyzer was used. For each setup, transmission (S 21 ) and reflection (S 11 ) parameters were recorded with the network analyzer.…”

Multioctave microstrip‐to‐coplanar waveguide vertical transition

“…In addition, their fabrication process is usually difficult and costly as sophisticated tools are needed to minimize their additional losses [5,6]. To overcome the shortcomings of the viaholes, aperture-coupled vertical transitions can be used [7,8]. However, the relatively high insertion loss due to the use of compact aperture-coupled transitions in broadband applications, such as the ultra-wideband technology (3.1-10.6 GHz), is still a problem which needs to be solved.…”

“…Moreover, the change of the shape beyond the established geometry causes the necessity of a new formulation of the problem. When the axially symmetrical objects with more general shape are taken into account, the more powerful are 2.5dimensional discrete techniques, e.g., finite difference time domain method (FDTD) [7] or finite element method [8]. However, in the analysis of multiple post complex structures, the analysis using discrete techniques can be inefficient because of the high mesh density involved for accurate results.…”

Vertical Transition in Multilayer Millimeter Wave Module Using Circular Cavity

“…It is well known that line loss will deteriorate in millimeter wave band especially for planar transmission lines, which makes troubles for the design of good performance transition in millimeter wave band. Several new structures of planar transmission line transition in different layers have been demonstrated in [1,2] although which performed in frequencies under millimeter wave band. In [1] and [2] transitions between microstrip/CB-CPW and CB-CPW (conductor backed coplanar waveguide) were constructed through a slot located in ground plane of middle layer.…”

“…Several new structures of planar transmission line transition in different layers have been demonstrated in [1,2] although which performed in frequencies under millimeter wave band. In [1] and [2] transitions between microstrip/CB-CPW and CB-CPW (conductor backed coplanar waveguide) were constructed through a slot located in ground plane of middle layer. Insertion loss less than 2 dB was obtained in the operating frequency up to 16 GHz.…”