Miniaturized Triband Circular Patch Antenna for X Band, Ku Band and K Band Applications

A triband microstrip patch antenna is investigated in this research paper. The simulated antenna shows its application in X band, Ku band and K band and it can be used for military applications, defence tracking and Satellite communication. The presented antenna is miniaturized and has the substrate size of 14.3 mm x14.3 mm with patch radius of 4.2 mm. Fr4 (εr=4.4) material is used for designing of substrate with the substrate height of 2mm. The proposed antenna is resonating at 9.528 GHz, 12.806 GHz and 19.173 GHz. The technique to feed the antenna is Microstrip line feeding. Four slits have been cut down on the patch so that the antenna can operate for triband applications. All the simulation work is done in Ansoft HFSS antenna simulation software.