US 12,034,207 B2
Multichannel photoconductive terahertz receiving antenna, re-ceiver, terahertz system and terahertz method
Simon Nellen, Berlin (DE); and Björn Globisch, Berlin (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V., Munich (DE)
Appl. No. 17/593,654
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
PCT Filed Jan. 20, 2020, PCT No. PCT/EP2020/051315
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/192979, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 19165658 (EP), filed on Mar. 27, 2019.
Prior Publication US 2022/0368015 A1, Nov. 17, 2022
Int. Cl. H01Q 9/00 (2006.01); H01Q 1/38 (2006.01); H01Q 9/28 (2006.01); H01Q 15/00 (2006.01); G01J 11/00 (2006.01)
CPC H01Q 1/38 (2013.01) [H01Q 9/285 (2013.01); H01Q 15/0033 (2013.01); G01J 11/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A receiving antenna for terahertz radiation, the receiving antenna comprising:
an antenna conductor; and
a first photoconductor connected to the antenna conductor, wherein the first photoconductor is activatable by light, wherein the first photoconductor when, in an activated state, allows an antenna current to flow through the antenna conductor and the first photoconductor;
wherein the receiving antenna comprises at least one second photoconductor connected to the antenna conductor, wherein the at least one second photoconductor is activatable by light, wherein the at least one second photoconductor is connected in parallel with the first photoconductor and when the at least one second photoconductor is in an activated state, allows the antenna current to flow through the antenna conductor and the second photoconductor, and wherein at least one high-pass filter is connected between at least one of: the first photoconductor and the antenna conductor, or the at least one second photoconductor and the antenna conductor.