A reconfigurable baseband circuit applied for WiMAX low-IF receivers

Xin CHENG; Guangjun XIE

Makale detayları

A reconfigurable baseband circuit applied for WiMAX low-IF receivers

Yazarlar:

Xin CHENG | Guangjun XIE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 5, pp.1230-1240

Belge Tipi:

Makale

Yayın Tarihi:

4/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000742865

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

This paper presents a reconfigurable baseband circuit for  WiMAX low-IF receivers, including a complex filter and 2 automatic gain  controllers (AGCs) for I and Q channels. Only by changing the capacitor  values can the center and cutoff frequencies of the complex filter be  adjusted simultaneously to realize the reconfigurability. Meanwhile, a novel  one-step method to obtain fast gain settling of AGCs is proposed. The chip  is fabricated in 0.13-m m CMOS technology, occupies 0.9 \times  1.3  mm2, and consumes 14.8 mW of power with a 1.2-V power supply. The  measurement results show a reconfigurable bandwidth of 2 K to 3.5/5/10 MHz,  a gain range of 10 to 58 dB, and a total harmonic distortion of 0.43 % to  1.66%.

 

This paper presents a reconfigurable baseband circuit for  WiMAX low-IF receivers, including a complex filter and 2 automatic gain  controllers (AGCs) for I and Q channels. Only by changing the capacitor  values can the center and cutoff frequencies of the complex filter be  adjusted simultaneously to realize the reconfigurability. Meanwhile, a novel  one-step method to obtain fast gain settling of AGCs is proposed. The chip  is fabricated in 0.13-m m CMOS technology, occupies 0.9 \times  1.3  mm2, and consumes 14.8 mW of power with a 1.2-V power supply. The  measurement results show a reconfigurable bandwidth of 2 K to 3.5/5/10 MHz,  a gain range of 10 to 58 dB, and a total harmonic distortion of 0.43 % to  1.66%.

Makale detayları

A reconfigurable baseband circuit applied for WiMAX low-IF receivers

Yazarlar: Xin CHENG | Guangjun XIE

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 5, pp.1230-1240

Belge Tipi: Makale

Yayın Tarihi: 4/2014

Belge Dili: Türkçe

Document ID (Org No.): 2000742865

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Xin CHENG | Guangjun XIE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2014 Vol.22 Issue 5, pp.1230-1240

Belge Tipi:

Makale

Yayın Tarihi:

4/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000742865

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632