Reconfigurable Polarization

hello
i m doing my project on circular microstrip antenna with With Reconfigurable Polarization.plz help

can any one please help me with the calculation of Δs/S.......i know that it is equal to1/(1.841*Q).....{q is unloaded Q factor}........help me to calculate the value of Q.........its urgent

hi
don't confuse yourself by this formula
you must reading some paper and then simulated those paper by HFSS or CST or ADS or...

To get some idea, You can search in the IEEE journals for the topic.
Also, Balanis has devoted a chapter of his handbook ( Modern Antenna Handbook, 2008 ) to reconfigurable antennas.