MICROSTRIP FILTER AND MICROPHONE DEVICE USING SAME

A microstrip filter is provided in the present disclosure. The microstrip filter includes a substrate having a first surface and a second surface opposite to each other, a first spiral metal line formed on the first surface of the substrate, and a second spiral metal line formed on the second surfac...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	Chi Sijie
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS INDUCTANCES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MAGNETS PUBLIC ADDRESS SYSTEMS RESONATORS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS WAVEGUIDES
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A microstrip filter is provided in the present disclosure. The microstrip filter includes a substrate having a first surface and a second surface opposite to each other, a first spiral metal line formed on the first surface of the substrate, and a second spiral metal line formed on the second surface of the substrate. At least part of the first spiral metal line overlaps and is coupled to the second spiral metal line for forming a filter capacitor. The present disclosure also provides a microphone device using the microstrip filter.