uri1636
Junior Member level 2
1. For a PhD study, I am designing a serial array of microstrip antenna at a frequency of 110 GHz with Taylor distribution to reduce the side lobes to -30 dB.
2. In the first stage, I designed a set of 16 lines, with 20 elements in Taylor distribution, each with an input port and the simulation software (CST) summarizing the effects to one result, so I got the gain of 20.3dB.
3. In the second stage, I designed a Wilkinson 1:16 power divider to the frequency of 110 GHz to divide the main input into 16 branches to connect to the 16-line serial array and got an appropriate band width around 110 GHz.
4. In the third stage, I combined the two systems, and although each one works independently, the desired 16 dB gain around is not obtained after the reductions from the power divider, However, an excellent bandwidth of around 110 GHz is obtained.
5. How can I solve this problem?
2. In the first stage, I designed a set of 16 lines, with 20 elements in Taylor distribution, each with an input port and the simulation software (CST) summarizing the effects to one result, so I got the gain of 20.3dB.
3. In the second stage, I designed a Wilkinson 1:16 power divider to the frequency of 110 GHz to divide the main input into 16 branches to connect to the 16-line serial array and got an appropriate band width around 110 GHz.
4. In the third stage, I combined the two systems, and although each one works independently, the desired 16 dB gain around is not obtained after the reductions from the power divider, However, an excellent bandwidth of around 110 GHz is obtained.
5. How can I solve this problem?