Hello, I'm looking for some insightfull answers for the following topic: I have a (slotted) waveguide where multiple (50) antennas (for sending and receiving) are located in a slot that runs along the waveguide (200 meters long). On both ends of the waveguide are probes located for the wireless signal (5GHz) to send through it. My questions are as follows: 1) If there are little metal pieces in the waveguide, do they reflect the signal or absorb it? And will this result in a signal drop only on that specific location or will it effect the entire (200m) waveguide? (overal signal strength) 2) If the position of the antenna in the slot (of the waveguide) isn't optimal (tilted etc), will this effect the way of transmitting signals from the antenne through the waveguide (to some receiver)? Will this be more difficult to send and receive data? why? 3) Can a damaged antenna effect the overal signal quality in the waveguide? why (not)?