Doctoral thesis
My thesis contains a more pedagogical descriptions of cosmology and detectors than is possible in my publications. You can download the entire thing here: O'Brient_thesis
You can also read individual sections:
1. Introduction
6. Sinuous Antenna Coupled TES bolometers
7. Diplexer & Triplexer Circuits
9. Conclusions
At the time I wrote my thesis, it was impractical to simulate the sinuous antenna under a contacting lens in a 3-D simulator like HFSS. Instead, I simulated the antenna in a semi-infinite space using ADS-momentum, and then used a quasi-optical ray-tracing algorithm to account for refractions and diffraction at the lens surface. You can download that code here, although it's probably no longer necessary: Contacting lens raytracing code(zipped).