This white paper presents a design and simulation of a Cross Spiral Antenna. The antenna model is as in the paper “A multi-polarization multi-band cross spiral antenna for mobile communication devices”, ISAP 2012 International Symposium.
The CSA antenna exhibits good performances at 3 frequency bands so it is supposed to be used as combined RFID, mobile-phone (UMTS) and GPS band device – 1.0 GHz, 1.8 GHz and 1.67 GHz, respectively. This printed device is manufactured at low cost FR4 substrate with Er = 4.4 and Hsub = 1.6 mm.
Feeding area of the structure was done in two completely different ways. One was via a very simple wire bridge. The second feed area included coaxial feeders and connector with all the details. Despite that, results are very stable and similar. The configuration used for simulations is a standard desktop PC, while the simulation time is measured in seconds. The good agreement with measured results is also presented.