Cite

    Baoping Ren et al.. “Compact dual‐band bandpass filter and diplexer using hybrid resonant structure with independently controllable dual passbands.” International journal of RF and microwave computer-aided engineering, vol. 29, no. 1, 2019, p. n/a. http://access.bl.uk/ark:/81055/vdc_100076791475.0x00002b