Directional Coupler with SMA Connectors

Fast Intro

The directional coupler is a 4-port network that is designed to divide and distribute RF.Microwave power. Although this would seem to be a particularly mundane and simple task, these devices are both
very important in microwave systems, and very difficult to design and construct.
Two of the reasons for this difficulty are our desire for the device to be:

1. Matched
2. Lossless
   Without going into to much math, here are the solutions for the drectional four ports coupler

The symmetric solutions is:

The asymmetrical solutions is:

Here we can say that port 1 is the input port, port 2 is the through port, port 3 is the coupled port, and port 4 is the isolation port

The Project statment

"Same as the old project, but now we need to add SMA Connectors

Circuits and Results

Layout And Model Parameters Without SMA Connection

Momentum Simulation Before Tunning

Layout Before Tunning

After Tunning

SMA Schematic 

Substrate

Layout

EM simulation

Testing