• 09000802

    Accepted author manuscript, 11.6 MB, PDF document


We present the design, fabrication and characterisation of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid MKID to measure the beam pattern and absolute coupling efficiency at three frequency bands centred around 350, 650 and 850 GHz, covering the full antenna band. We find an aperture efficiency ηap ≈ 0.4 over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the sub-mm wavelength range for future on-chip spectrometers.
Original languageEnglish
Number of pages5
JournalIEEE Transactions on Antennas and Propagation
Publication statusE-pub ahead of print - 2020

    Research areas

  • Broadband antennas, Submillimeter wave devices, superconducting devices, Ultrawideband antennas

ID: 72957241