An antenna converts electrical energy to electro magnetic energy so, without two wires you can't transfer electrical energy.

The antenna projects back to the driving source the impedance of free space. This happens to be resistive at about 377 ohms however, the antenna, depending on type and complexity transforms this value to typically a few tens of ohms and quite often this is 50 ohms.

A dipole antenna produces an e field on one limb that is the same amplitude but opposite sign to the e field on the other limb. This means that a plane, centralized at the antenna's midpoint has zero e field as far as the eye can see, so to speak. This is exactly equivalent to ground.

An antenna converts electrical energy to electro magnetic energy so, without two wires you can't transfer electrical energy.

The antenna projects back to the driving source the impedance of free space. This happens to be resistive at about 377 ohms however, the antenna, depending on type and complexity transforms this value to typically a few tens of ohms and quite often this has a complex value that needs to be taken into account to get maximum power transfer.

A dipole antenna produces an e field on one limb that is the same amplitude but opposite sign to the e field on the other limb. This means that a plane, centralized at the antenna's midpoint has zero e field as far as the eye can see, so to speak. This is exactly equivalent to ground.

An antenna converts electrical energy to electro magnetic energy so, without two wires you can't transfer electrical energy.

The antenna projects back to the driving source the impedance of free space. This happens to be resistive at about 377 ohms however, the antenna, depending on type and complexity transforms this value to typically a few tens of ohms and quite often this is 50 ohms.

An antenna converts electrical energy to electro magnetic energy so, without two wires you can't transfer electrical energy.

The antenna projects back to the driving source the impedance of free space. This happens to be resistive at about 377 ohms however, the antenna, depending on type and complexity transforms this value to typically a few tens of ohms and quite often this is 50 ohms.

A dipole antenna produces an e field on one limb that is the same amplitude but opposite sign to the e field on the other limb. This means that a plane, centralized at the antenna's midpoint has zero e field as far as the eye can see, so to speak. This is exactly equivalent to ground.