Comparison of full 3D and unit cell models for waveguide-embedded frequency multiplier arrays
Artikel i vetenskaplig tidskrift, 2016

We present a full wave, large-signal analysis of a waveguide-embedded frequency multiplier array, solving the entire geometry using FEM EM modeling and including every nonlinear element in a Harmonic Balance simulation. The full 3D model employed provides the exact field distribution across the array, thus enabling us to account for substrate resonances, higher order mode excitation, instabilities, and diode yield. The model is compared with measurements on a 247 GHz fixed tuned 72-diode HBV tripler. In this example, higher order mode excitation was found due to the interaction between the filter and the diode array. This can only be observed using a full 3D model, which more accurately predicts the output power versus input power and frequency. Finally, the pros and cons of a full 3D model and a unit cell model for waveguide embedded multiplier arrays are discussed.

Varactors

Spatial Power Combining

Higher Order Modes

Unit Cell Modeling

Frequency Multipliers

Heterostructure Barrier Varactors

Författare

Gergely Hrubó

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Robin Dahlbäck

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Jan Stake

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 26 954-956 7676378

Styrkeområden

Informations- och kommunikationsteknik

Infrastruktur

Kollberglaboratoriet

Nanotekniklaboratoriet

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1109/LMWC.2016.2615011