Microstrip radiator for circular polarization free of welds and floating potentials

An antenna comprising:

• first and second conductive ground layers;
• a radiating patch element separated from said first conductive ground layer by a slot;
• a wire antenna comprising at least one spiral strip connecting said patch element to said first conductive ground layer;
• an electric input layer;
• an input strip in said electrical input layer, said input strip terminating below said patch element;
• a first layer of dielectric material separating said input layer from said patch element, said first layer of dielectric material also separating said input layer from said first conductive ground layer;
• a second conductive ground layer;
• and
• a second layer of dielectric material separating said second conductive ground layer from said input layer.