{'fraction_non_alphanumeric': 0.00510204081632653, 'fraction_numerical': 0.0, 'mean_word_length': 5.330645161290323, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Rigorous Analysis and Design of Finline Tapers for High Performance Millimetre and Submillimetre Detectors

Antipodal finline tapers have demonstrated excellent performance in conjuction with SIS mixers and have recently been used with TES detectors for the CMB polarisation instrument CLOVER. In this paper we present the computation of the finline parameters using the Transverse Resonance method and Spectral Domain Analysis and compare them with those obtained from Finite Element simulations. We also present a software package that can read an input file and then synthesise a minimum length taper for a requested return loss. The input file must contain the cutoff frequency as a function of the finline slot dimension which can be computed externally to the synthesis package.