Title:

A 24 GHz PHEMT-based oscillator, Journal of Telecommunications and Information Technology, 2003, nr 1

Creator:

Lewandowski, Arkadiusz ; Wiatr, Wojciech ; Mwema, Wilfred ; Kompa, Günter

Subject and Keywords:

oscillator design method ; nonlinear PHEMTmodel ; describing function ; negative resistance ; microwave oscillator ; microstrip components models

Description:

We present a systematic nonlinear procedure for designing microwave oscillators utilising a nonlinear PHEMT model, the negative resistance approach and the describing function concept. The procedure is applied in the design of a 24 GHz oscillator, which is then realised in hybrid technology. Measurement results show -6% shift in the frequency but an acceptable agreement in the output power. A detailed analysis shows that the frequency shift arises mainly from inadequate CAD models in the K band, for the microstrip components employed in our design.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Date:

2003, nr 1

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

DOI:

10.26636/jtit.2003.1.160

ISSN:

1509-4553

eISSN:

1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności