《2.4 GHz YAGI PCB Antenna》.pdf

Application Note DN034 2.4 GHz YAGI PCB Antenna By Richard Wallace Steve Dunbar Keywords • Antenna Selection • OTA Measurements • Directional Antenna • CC2xxx • Yagi PCB Antenna • CC8520 • 2.4 GHz Antenna 1 Introduction This application note describes a 2.4 GHz This antenna design is one of the several Yagi PCB Directional Antenna that can be antenna reference designs available on used with any 2.4 GHz radio reference /lpw and is included in the design that has a 50 ohm RF interface. Comprehensive Antenna Selection Guide [1] and the Antenna Selection Quick Guide Figure 1 shows the 2.4 GHz Yagi PCB [7]. Directional Antenna test board. The size of the board is 100 x 150 mm. Pros and cons of directional antennas are mentioned and the correct choice of The bandwidth, impedance and OTA antenna will improve system performance. measurement results are presented in this document. Complete OTA CTIA With special thanks to Luke Sankey and measurements are included in the the University of Colorado for their appendices section. assistance in making this design note possible. Figure 1. 2.4 GHz Yagi PCB Directional Antenna Test Board SWRA350 Page 1 of 28