{'fraction_non_alphanumeric': 0.037987679671457907, 'fraction_numerical': 0.04209445585215606, 'mean_word_length': 5.3311688311688314, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 1, '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}}
Resonance frequency of an equilateral triangular microstrip antenna

We propose two simple and accurate closed‐form models to compute the resonance frequency of an equilateral‐triangular microstrip patch antenna on standard single layer and suspended substrates. The models have accuracy better than 0.7% for all cases for substrates having εr = 1.09 to 10.5. We also compare the accuracy of the commercial full‐wave analysis software, Microwave Studio, against the available experimental results. It exhibits average accuracy of about 2.94% for the suspended structure and 0.97% for the standard substrate. The proposed models can be easily extended to the multilayer composite substrate. The models are suitable for interactive CAD of design and optimization of equilateral‐triangular microstrip antenna. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 485–489, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21207