NOVELTY - The system has a transmitting antenna (22) arranged at a charging location and including a first helix of dual parallel wires (24, 26). A receiving antenna is associated with a transportable energy consuming device including a second helix of dual parallel wires. Each of the antennas is identically formed. A varying unit varies arrangements of the antennas in concert between folded dipole and normal dipole arrangements. Capacitor units are connected between the wires of the helixes so as to selectively progressively vary the antennas between normal dipole and folded dipole modes.    USE - Wireless energy coupling system for a wireless energy charging installation (claimed), to charge a battery system of an automotive vehicle, cellular phone, tire pressure sensor, oxygen sensor, battery monitor and portable computer (all claimed).    ADVANTAGE - The system includes voltage controlled variable capacitors to be connected into the antennas to permit progressive variation between folded dipole and normal dipole operating modes such that optimum energy transfer can be achieved between the antennas over wide range of antenna separation distances. The system allows a sensor with a battery to be charged by radioactive coupling and to be operated in a batteryless manner so as to operate directly from the transmitted energy, so that tuning capacitors and testing steps are not required.    DETAILED DESCRIPTION - The helixes are voltage-controlled, variable capacitors (34, 36, 38). INDEPENDENT CLAIMS are also included for the following:    (1) a wireless energy charging installation    (2) a wireless electrical power transfer system    (3) a method for charging a battery in a transportable power using device from a fixed power delivery location.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an antenna in two modes including varactors between wires of an antenna.    Transmitting antenna (22)    Dual parallel wires (24, 26)    Contact (28)    Short wires (30, 32)    Voltage-controlled, variable capacitors (34, 36, 38)