{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Coupling of antenna elements to a circular surface waveguide 1955 [Hardcover]","author_name":"Howard Eng King R. H. DuHamel","thumbnail_url":"https://www.ebooknetworking.net/books/933/335/big9333355464.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9333355464.html\">Coupling of antenna elements to a circular surface waveguide 1955 [Hardcover]</a>","width":400,"height":300}