{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Driving-Point-Impedance Measurement and Balun Design for Spiral Antennas.","author_name":"William B. Weir","thumbnail_url":"https://www.ebooknetworking.net/books/B00/B06/bigB00B06O0DG.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00B06O0DG.html\">Driving-Point-Impedance Measurement and Balun Design for Spiral Antennas.</a>","width":400,"height":300}