Single band antenna using harmonic trap open circuit stub (OCS) method for Electromagnetic Radiation detector

This paper focused on the design and performance of harmonic suppression antenna (hsa) that can effectively operate at frequencies of 900 mhz,1800 mhz,2100 mhz and 2600 mhz and can suppress the undesired harmonic frequencies. proposed antenna can be used as a rf detector to sense the electromagnetic radiation from mobile base station. harmonic suppression antenna (hsa) is able to suppress the harmonic frequencies to get a better antenna performance since the needed to have single band antenna as a rf detector. open circuit stub (ocs) is the harmonic suppression techniques that has been used in this project and capable to suppress the harmonic frequencies in the range of 0 mhz to 7 ghz. the stubs as harmonic suppression element does not affect the radiation pattern which has the percentage of reduction is about less than 10 %. the simulation of the antenna design was conducted by using cst microwave studio software.