Multi-Band Diversity Antenna without Matching Circuit for Medical External Communication

Abstract

An antenna for electrically coupling to a wireless communication circuit includes: a first conductive strip segment having a first length; a second conductive strip segment having a length different from the A second length of the first length and coupled to the first conductive strip segment at a feed point that will be electrically coupled to the drive node; and a third conductive strip segment having a thickness less than the A third length of both the first length and the second length. A first end of the third conductive strip segment is coupled to the feed point, and a second end is coupled to circuit ground. The first conductive strip segment provides a first specified operating frequency range in a fundamental frequency resonant mode corresponding to the first length plus the third length, and the second conductive strip segment is The fundamental frequency resonance mode corresponding to the second length plus the third length provides a second specified operating frequency range.

Description

[0001] This application was filed on January 22, 2016 with the U.S. state-owned corporation Cardiac Pacemakers, Inc., designated applicants of all countries, and U.S. citizen David Nghiem, U.S. citizen Peter J. Peter J. Musto and Larry D. Canady, a U.S. citizen, filed a PCT international patent application in the name of the designated inventors of all countries, and requested to be filed on January 2015 Priority to U.S. Provisional Patent Application No. 62 / 106,448 filed on March 22, the contents of which are hereby incorporated by reference in their entirety. Background technique [0002] Ambulatory medical devices include implantable medical devices (IMDs) and wearable medical devices. Some examples of IMDs include cardiac function management (CFM) devices such as implantable pacemakers, implantable cardioverter defibrillators (ICD), cardiac resynchronization therapy devices (CRT), and combinations that include such capabilities device of. The device may be used to treat ...

AI Technical Summary

Problems solved by technology

However, RF communication frequencies may be restricted by administrations or other regulatory agencies

For example, when using medical devices and communicators in different countries or regulatory jurisdictions, an RF channel available for one communication session may not be available for another

Images