Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method
In this work, we propose a novel approach called as “Normalized Gain Function (NGF) method” to design low/medium power single stage ultra wide band microwave amplifiers based on linear S parameters of the active device. Normalized Gain Function TNGF is defined as the ratio of T and |S21|^2, desired...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2013-09-01
|
| Series: | Radioengineering |
| Subjects: | |
| Online Access: | http://www.radioeng.cz/fulltexts/2013/13_03_0672_0686.pdf |
| _version_ | 1811200069910659072 |
|---|---|
| author | R. Kopru H. Kuntman B. S. Yarman |
| author_facet | R. Kopru H. Kuntman B. S. Yarman |
| author_sort | R. Kopru |
| collection | DOAJ |
| description | In this work, we propose a novel approach called as “Normalized Gain Function (NGF) method” to design low/medium power single stage ultra wide band microwave amplifiers based on linear S parameters of the active device. Normalized Gain Function TNGF is defined as the ratio of T and |S21|^2, desired shape or frequency response of the gain function of the amplifier to be designed and the shape of the transistor forward gain function, respectively. Synthesis of input/output matching networks (IMN/OMN) of the amplifier requires mathematically generated target gain functions to be tracked in two different nonlinear optimization processes. In this manner, NGF not only facilitates a mathematical base to share the amplifier gain function into such two distinct target gain functions, but also allows their precise computation in terms of TNGF=T/|S21|^2 at the very beginning of the design. The particular amplifier presented as the design example operates over 800-5200 MHz to target GSM, UMTS, Wi-Fi and WiMAX applications. An SRFT (Simplified Real Frequency Technique) based design example supported by simulations in MWO (MicroWave Office from AWR Corporation) is given using a 1400mW pHEMT transistor, TGF2021-01 from TriQuint Semiconductor. |
| first_indexed | 2024-04-12T01:58:33Z |
| format | Article |
| id | doaj.art-dfe6f0b530854b70912029ead7e1748f |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-04-12T01:58:33Z |
| publishDate | 2013-09-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-dfe6f0b530854b70912029ead7e1748f2022-12-22T03:52:45ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-09-01223672686Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function MethodR. KopruH. KuntmanB. S. YarmanIn this work, we propose a novel approach called as “Normalized Gain Function (NGF) method” to design low/medium power single stage ultra wide band microwave amplifiers based on linear S parameters of the active device. Normalized Gain Function TNGF is defined as the ratio of T and |S21|^2, desired shape or frequency response of the gain function of the amplifier to be designed and the shape of the transistor forward gain function, respectively. Synthesis of input/output matching networks (IMN/OMN) of the amplifier requires mathematically generated target gain functions to be tracked in two different nonlinear optimization processes. In this manner, NGF not only facilitates a mathematical base to share the amplifier gain function into such two distinct target gain functions, but also allows their precise computation in terms of TNGF=T/|S21|^2 at the very beginning of the design. The particular amplifier presented as the design example operates over 800-5200 MHz to target GSM, UMTS, Wi-Fi and WiMAX applications. An SRFT (Simplified Real Frequency Technique) based design example supported by simulations in MWO (MicroWave Office from AWR Corporation) is given using a 1400mW pHEMT transistor, TGF2021-01 from TriQuint Semiconductor.www.radioeng.cz/fulltexts/2013/13_03_0672_0686.pdfUltra wideband microwave amplifiersSimplified Real Frequency Technique (SRFT)small signal scattering parametersmatching networksChebyshev approximationnonlinear optimizationMatlabMicrowave Office (AWR) |
| spellingShingle | R. Kopru H. Kuntman B. S. Yarman Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method Radioengineering Ultra wideband microwave amplifiers Simplified Real Frequency Technique (SRFT) small signal scattering parameters matching networks Chebyshev approximation nonlinear optimization Matlab Microwave Office (AWR) |
| title | Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method |
| title_full | Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method |
| title_fullStr | Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method |
| title_full_unstemmed | Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method |
| title_short | Novel Approach to Design Ultra Wideband Microwave Amplifiers: Normalized Gain Function Method |
| title_sort | novel approach to design ultra wideband microwave amplifiers normalized gain function method |
| topic | Ultra wideband microwave amplifiers Simplified Real Frequency Technique (SRFT) small signal scattering parameters matching networks Chebyshev approximation nonlinear optimization Matlab Microwave Office (AWR) |
| url | http://www.radioeng.cz/fulltexts/2013/13_03_0672_0686.pdf |
| work_keys_str_mv | AT rkopru novelapproachtodesignultrawidebandmicrowaveamplifiersnormalizedgainfunctionmethod AT hkuntman novelapproachtodesignultrawidebandmicrowaveamplifiersnormalizedgainfunctionmethod AT bsyarman novelapproachtodesignultrawidebandmicrowaveamplifiersnormalizedgainfunctionmethod |