Abstract
A novel compact dual-frequency microstrip antenna is achieved by embedding two parallel slots to the radiating edges and insetting slits at the non-radiating edges. The proposed antenna exhibits dual-frequency band behavior operating at 867 MHz and 2.45 GHz suitable for UHF and microwave RFID application. The slot loading effect has been studied and evaluated. The two desired frequencies are tunable with frequency ratio of 2.66 to 2.95 by varying the meandered slit length. A good agreement is obtained between the simulated results and experimental results.