I need help in designing a crossed dipole antenna at 435Mhz using microstrip lines for my interest. Currently, my reference is Gomspace ANT430. However, I am not sure how to calculate the antenna impedance, and how does it related to the microstrip line? Why is there a 90 degrees phase shift? How does the input signal look like with a single dipole and a crossed dipole without phase adjustment? How to adjust the phase factor and what do I need to look out for? Thank you for your help.
Geoff Schulteis
Senior Antenna Apps Specialist at Antenova Geoff is an antenna design-in and OTA measurement specialist. His knowledge of FCC and world carrier requirements is second-to-none.
