Choke ring antenna
A choke ring antenna is a rotationally symmetrical antenna . It consists of a central antenna and a row of metallic cylinders arranged concentrically to it, which act as directors and whose height decreases towards the outside. The design of this antenna was developed in the Jet Propulsion Laboratory (JPL).
Due to its special design and arrangement of the rotationally symmetrical cylinders, it can prevent multi-path reception , i.e. the reception of a signal directly and additionally via reflections. This makes it well suited for measuring the distance to the transmitter over the signal propagation time. That is why they are often used as a receiving antenna for fixed reference receivers for differential GPS .
Individual evidence
- ↑ Patent US6040805 : Low profile ceramic choke. Filed May 8, 1998 , published May 8, 2000 , Applicant: Antcom Corp., Inventor: Son Huy Huynh, George Cheng.
- ↑ A basic description of choke ring antenna benefits and limitations. Retrieved April 21, 2017 .
- ↑ Choke Ring Theory. Retrieved April 21, 2017 .