Printed and Planar Antennas

Design and Construction of a Yagi-Uda Type Microstrip Antenna With Two Directors at 1 GHZ

“…The construction of the microstrip radiator was not active until the early 1970s [4]. Du Preez et al (2016), comment in a followup on microstrip antennas that these dates back to the 1950s, but technical interest began in the 1970s. They are very compact antennas that in arrays of hundreds of them can be grouped into panels with certain applications.…”