Patent ID: 11901604
Assignee: nan
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An antenna for facilitating remote reading of utility meters, said antenna comprising:
a printed circuit board (PCB) having a dielectric layer located between a metal layer and a metal trace;
a metal rod secured to said PCB, wherein said metal rod is electrically connected to said metal trace but not electrically connected to said metal layer of said PCB;
a connector includes a signal pin contact and a ground shield contact, wherein said signal pin contact is connected to said metal trace of said PCB, and said ground shield contact is connected to said metal layer of said PCB via a through-hole connector;
an impedance-matching network formed by said metal trace located between said connector and said metal rod, wherein said impedance matching network provides matching impedance between said connector and said metal rod, wherein said impedance-matching network is an impedance-matching metal trace formed by said metal trace to provide quarter-wave impedance matching, wherein an impedance of said impedance-matching metal trace is 22Ω, wherein said metal trace includes a first metal trace section located between said connector and said impedance-matching metal trace, wherein an impedance of said first metal trace section is 50Ω;
a second metal trace section connected between said impedance-matching metal trace and said metal layer of said PCB; and
an envelope for enclosing said metal rod, said PCB and said connector, wherein said envelope includes
a plastic body having a channel to receive said metal rod; and
a plastic cap for covering said plastic body.