@inproceedings{776a9527aec244edaf8a53ac9268dd7f,
title = "Distributed active radiator arrays for efficient doubling, filtering, and beam-forming",
abstract = "Distributed Active Radiator (DAR) arrays are demonstrated as novel ways of harmonic generation, radiation, and filtration to generate power at frequencies above the cut-off frequency of a technology. As proofs-of-concept, 2x1 and 2x2 arrays of DAR with beam-forming are implemented on PCB, which are designed to oscillate at the fundamental frequency of 1.25GHz, while radiating (circularly-polarized) at the doubling frequency of 2.5GHz. The measured EIRP of 2x1 and 2x2 arrays are 7.46dBm and 12.96dBm, respectively, at 2.5GHz with a DC-to-radiated 2nd harmonic conversion of 0.8%. Almost 40° of beam-steering at 2.5GHz was measured in 2D space for the 2x2 array and more than 15dB suppression of the first and third harmonic compared to the desired second harmonic was measured in the radiated far-field.",
keywords = "antenna, beam steering, distributed active radiation, doubling, mutual locking, on-chip radiation, phased array",
author = "Dongjin Seo and Kaushik Sengupta and Ali Hajimiri",
year = "2011",
month = jun,
day = "1",
doi = "10.1109/MWSYM.2011.5972981",
language = "English (US)",
isbn = "9781612847566",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2011 IEEE MTT-S International Microwave Symposium, IMS 2011",
address = "United States",
}