Design of a buried hybrid coupler for wideband applications using LTCC technology

Author

Belambri, Nouria ; Dubouil, Dominique ; Talbot, C. ; Kouki, Ammar B. ; Gagnon, Francois

Author_Institution

Commun. & Microelectron. Lab. (LACIME), Ecole de Technol. Super., Montreal, QC, Canada

fYear

2011

fDate

8-11 May 2011

Abstract

The design of a buried wideband 3 dB hybrid coupler in Low Temperature Co-fired Ceramics (LTCC) technology is presented. The LTCC process used is briefly described and the electromagnetic field simulation-based design is presented. Particular care is placed on the design and optimization of transmission from the buried stripline coupler to coplanar probing pads at the surfaces. Measured results of the fabricated coupler are in good agreement with simulations and show good performance with input matching, an amplitude balance of ±0.5 dB and phase balance of 90±1.5° over a wide frequency band from 3.2 to 5.1 GHz. The dimensions of the fabricated coupler are (3.3 × 6.8 × 2.15mm³).

Keywords

ceramic packaging; electromagnetic fields; waveguide couplers; LTCC technology; amplitude balance; buried hybrid coupler; buried stripline coupler; coplanar probing pad; electromagnetic field simulation-based design; frequency 3.2 GHz to 5.1 GHz; input matching; low temperature co-fired ceramics; wideband application; Couplers; Couplings; Fabrication; Microstrip; Phase measurement; Stripline; Wideband; LTCC; coupler; stripline-microstrip transition; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on

Conference_Location

Niagara Falls, ON

ISSN

0840-7789

Print_ISBN

978-1-4244-9788-1

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2011.6030632

Filename

6030632