Inset-fed rectangular MICROSTRIP patch antenna bandwidth enhancement

摘要： Bandwidth enhancement of the traditional inset-fed rectangular microstrip patch antenna is numerically analyzed using degraded ground plane technique. Input impedance calculation based on the electromagnetic theory in traveling-wave in conjunction with field distribution in quasi-TEM mode approximation is carried out. Radiated electric field properties are performed using Ampere’s law of the magneto-static. Some antenna performances such as ?10 dB return loss bandwidth of 36.7%, beam-width of about 94(cid:1), and stable gain of 3.4 dB have been achieved.