CPW to Rectangular Waveguide Transition on an ${\hbox{LiNbO}}_{3}$ Substrate

Autor: Julien Macario, Peng Yao, Shouyuan Shi, Rownak Shireen, Christopher A. Schuetz, Dennis W. Prather
Rok vydání: 2009
Předmět:
Zdroj: IEEE Transactions on Microwave Theory and Techniques. 57:1494-1499
ISSN: 1557-9670
0018-9480
DOI: 10.1109/tmtt.2009.2020673
Popis: This paper presents transition from coplanar waveguide (CPW) to rectangular waveguide for W -band (75-110 GHz) operations. The waveguide consists of a cosine-shaped fin extending from the upper waveguide wall onto the CPW signal electrode. The design features direct integration of the waveguide with opto-electronic devices on lithium niobate (LiNbO3) for the applications of millimeter wave to optical signal processing. Simulations and measurements show that the model works very well over the entire W-band. Measurements of fabricated devices have yielded return loss of more than 10 dB and insertion loss of about 2.8 dB over the operating bandwidth.
Databáze: OpenAIRE