A novel CMOS G $$_{m}$$ m -C complex filter design for multi-mode multi band wireless receiver applications
| Autor: | Chintala Yehoshuva, Suresh Kumar Pittala, Venkata Reddy Ambati, B. Naresh Kumar Reddy |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Voltage-controlled filter business.industry 020208 electrical & electronic engineering Butterworth filter 020206 networking & telecommunications 02 engineering and technology Band-stop filter Surfaces Coatings and Films Filter design Hardware and Architecture Signal Processing 0202 electrical engineering electronic engineering information engineering Electronic engineering business High-pass filter Active filter m-derived filter Root-raised-cosine filter |
| Zdroj: | Analog Integrated Circuits and Signal Processing. 91:43-51 |
| ISSN: | 1573-1979 0925-1030 |
| Popis: | This paper presents a new approach of $$G_m$$GmC complex filter for multi standard wireless receiver applications. In order to get high IRR with low power consumption a novel architecture of $$G_m$$GmC complex filter has been proposed with the combination of first order left shifting and right shifting notch filters. The filter is designed in 180 nm CMOS technology and it has a power consumption of 580 μW from 1.8 V supply voltage. This novel approach can be used for multiband multi standard wireless receiver applications, because this filter can be tuned to operate in different frequency bands with different centre frequencies like bluetooth, UMTS, WLAN, GPS etc. In this paper the complex filter for bluetooth applications with a bandwidth of 2 MHz has designed and results are compared with the previous filter topology. The proposed filter achieves around 51 dB image rejection ratio at the center frequency of 4 MHz with using just a third order filter. The power consumed by the proposed filter is 52$$\,\%$$% less than the existing topology. |
| Databáze: | OpenAIRE |
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