Abstract:
The present disclosure provides a via transition, comprising: two end segments; high-impedance segments and low-impedance segments. The high-impedance segments and the low-impedance segments are alternately arranged between the two end segments, and the via transition is formed in a substrate. The disclosure also provides a power divider comprising the via transition and a method of fabricating the low-pass via transition.
Abstract:
A diplexer includes a substrate having a set of through substrate vias. The diplexer also includes a first set of traces on a first surface of the substrate. The first traces are coupled to the through substrate vias. The diplexer further includes a second set of traces on a second surface of the substrate that is opposite the first surface. The second traces are coupled to opposite ends of the set of through substrate vias. The through substrate vias and the traces also operate as a 3D inductor. The diplexer also includes a capacitor supported by the substrate.
Abstract:
Die Erfindung betrifft eine Schaltungsanordnung (1) mit einer vorgegebenen elektrischen Kapazität, umfassend ein Substrat (S) mit zumindest einem metallischen, elektrisch leitfähigen Leiterband (L, Lb, Ls). Erfindungsgemäß ist zumindest ein erster Leiterbandabschnitt (LA1) auf dem Substrat (S) angeordnet und zumindest ein zweiter Leiterbandabschnitt (LA2, LA3, LA4) ist zumindest bereichsweise auf dem ersten Leiterbandabschnitt (LA1) angeordnet, wobei zwischen den Leiterbandabschnitten (LA1, LA2, LA3, LA4) eine elektrisch isolierende Schicht (iS) angeordnet ist, welche ein Dielektrikum bildet. Des Weiteren betrifft die Erfindung ein Verfahren und eine Vorrichtung (2) zur Herstellung einer Schaltungsanordnung (1) mit einer vorgegebenen elektrischen Kapazität.
Abstract:
A hybrid electromagnetic bandgap (EBG) structure for broadband suppression of noise on printed wiring boards includes an array of coplanar patches interconnected into a grid by series inductances, and a corresponding array of shunt LC networks connecting the coplanar patches to a second conductive plane. This combination of series inductances and shunt resonant vias lowers the cutoff frequency for the fundamental stopband. The series inductances and shunt capacitances may be implemented using surface mount component technology, or printed traces. Patches may also be interconnected by coplanar coupled transmission lines. The even and odd mode impedances of the coupled lines may be increased by forming slots in the second conductive plane disposed opposite to the transmission line, lowering the cutoff frequency and increasing the bandwidth of the fundamental stopband. Coplanar EBG structures may be integrated into power distribution networks of printed wiring boards for broadband suppression of electromagnetic noise.
Abstract:
Embedded capacitors and a method for manufacturing the embedded capacitors. The method can include the steps of forming at least one bore (115) in a dielectric substrate (100). The dielectric substrate can be mechanically punched or laser cut to form the bore. The bore can be filled with a conductive material (250) to form a first electrode (470). A conductor (360) can be formed on the dielectric substrate, the conductor not being electrically continuous with the first electrode. A depth and/or cross sectional area of the bore can be selected to provide a desired amount of capacitive coupling between the electrode and the conductor. At least a second bore can be formed in the dielectric substrate and filled with a conductive material to form a second electrode. The second electrode can be electrically connected to the first electrode.