Design of a Helical Antenna for Handheld Transceivers

Presently, we live in a world where wireless communication plays a big part in our lives. We are now able to communicate with each other even from large distances. This would not be possible without technological advancements in signal transmission. Antennas allow for the transmission and reception of signals at each end of a wireless communication system. Improving the individual components of a system must be done to improve the system as a whole. Using MATLAB, we are going to design a helical antenna to be used in handheld transceivers. These devices are also called walkie-talkies and are can be very handy in certain situations wherein access to mobile signal service is not possible. Our design will have a target operating frequency of around 440 MHz to 480 MHz. This is based on the commonly used radio frequency bands of two-way radios. The designed antenna will then be generated and will have different properties plotted for analysis. The output graphs include the 3D radiation, azimuth, and elevation patterns; and the impedance, s parameter, and VSWR plots. Results will be analyzed to see if the design meets the targeted requirements.