A novel miniature antenna for Ka band applications at 33 GHz

When microwave frequencies are discussed, each has its own applications in different fields and talking in specific about the Ka band of operation, it is used for a variety of applications namely; satellite, police radar and many other millimeter wave applications. For all these applications we require an antenna resonating at the specific frequency with a small size preferably, good bandwidth, lesser losses that is with a good impedance match and lesser complexity which means ease of fabrication and installation. Here in this work we present a simple rectangular microstrip line printed antenna on a FR4 (loss free) substrate with μ as 4.9 which resonates at 33.8 GHz, offers a bandwidth of 5 GHz at a VSWR of <; 2. This is a omnidirectional broadside radiator with a 3 dB beam width of around 43 degrees, a side lobe level of -1.1 dB and a radiation efficiency of -19 dB and a gain of -12 dB.