@other{https://resolver.caltech.edu/CaltechETD:etd-02082008-163454,
    title = "UHF and X-Band Class-E amplifiers",
    year = "1999",
    url = "https://resolver.caltech.edu/CaltechETD:etd-02082008-163454",
    id = "record",
    doi = "10.7907/wrwt-7a21"
}