Dual band quadrifilar helix antenna

A dual-band antenna assembly for use with an electronic device comprises a substrate and first, second, third, and fourth antenna filar elements. The substrate includes a side wall forming a cylindrical shape. The first, second, third, and fourth antenna filar elements are positioned diagonally on t...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Straub, Henry J, Sayem, Abu T
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A dual-band antenna assembly for use with an electronic device comprises a substrate and first, second, third, and fourth antenna filar elements. The substrate includes a side wall forming a cylindrical shape. The first, second, third, and fourth antenna filar elements are positioned diagonally on the side wall and equally separated from one another. Each antenna filar element includes a first arm configured to receive wireless signals in a first frequency band and a second arm electrically connected to the first arm, positioned adjacent to the first arm, and configured to receive wireless signals in a second frequency band. The first arm has a length that is greater than a length of the second arm and has a portion which wraps around the second end of the second arm thereby capacitively coupling the portion of the first arm with the second arm.