Cascadable independently and electronically tunable voltage-mode universal filter with grounded passive components

Supavarasuwat, Piya; Kumngern, Montree; Sangyaem, Surasak; Jaikla, Winai; Khateb, Fabian

doi:10.1016/j.aeue.2017.12.002

Cited by 33 publications

(31 citation statements)

References 16 publications

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“…Additionally, the two VDDDA-based filters in reference [ 15 ] achieved orthogonal control of the f 0 and Q via the passive resistor. Additionally, the f 0 and Q of the proposed filters in references [ 13 , 14 , 20 , 21 , 22 ] could be linearly and independently controlled by simultaneously setting the transconductances in the integrator circuits. However, the biquad filter proposed in references [ 13 , 14 , 20 , 21 , 22 ] required three VDDDAs.…”

Section: Comparisonmentioning

confidence: 99%

“…Additionally, a low output impedance property for all output nodes was obtained in references [ 19 , 21 , 22 ]. In [ 13 , 14 , 20 , 21 , 22 ], the f 0 and Q were orthogonally controlled by the separated transconductance. However, the biquad filter proposed in references [ 13 , 14 , 20 , 21 , 22 ] requires three VDDDAs.…”

Section: Introductionmentioning

confidence: 99%

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Universal Filter Based on Compact CMOS Structure of VDDDA

Jaikla

Khateb

Kulej

et al. 2021

Sensors

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This paper proposes the simulated and experimental results of a universal filter using the voltage differencing differential difference amplifier (VDDDA). Unlike the previous complementary metal oxide semiconductor (CMOS) structures of VDDDA that is present in the literature, the present one is compact and simple, owing to the employment of the multiple-input metal oxide semiconductor (MOS) transistor technique. The presented filter employs two VDDDAs, one resistor and two grounded capacitors, and it offers low-pass: LP, band-pass: BP, band-reject: BR, high-pass: HP and all-pass: AP responses with a unity passband voltage gain. The proposed universal voltage mode filter has high input impedances and low output impedance. The natural frequency and bandwidth are orthogonally controlled by using separated transconductance without affecting the passband voltage gain. For a BP filter, the root mean square (RMS) of the equivalent output noise is 46 µV, and the third intermodulation distortion (IMD3) is −49.5 dB for an input signal with a peak-to peak of 600 mV, which results in a dynamic range (DR) of 73.2 dB. The filter was designed and simulated in the Cadence environment using a 0.18-µm CMOS process from Taiwan semiconductor manufacturing company (TSMC). In addition, the experimental results were obtained by using the available commercial components LM13700 and AD830. The simulation results are in agreement with the experimental one that confirmed the advantages of the filter.

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Section: Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Universal Filter Based on Compact CMOS Structure of VDDDA

Jaikla

Khateb

Kulej

et al. 2021

Sensors

Self Cite

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“…Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current‐mode approach (Channumsin et al, ; Chaturvedi & Maheshwari, ; Chaturvedi et al, ; Chaturvedi et al, ; El‐Adawy et al, ; Herencsar et al, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar, Chaturvedi, & Maheshwari, ; Kumar, Chaturvedi, Mohan, & Maheshwari, ; Lee & Chang, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Mohan et al, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ). Therefore, the multifunction filters based on current‐mode approach (Channumsin et al, ; Chaturvedi et al, ; Chaturvedi & Maheshwari, ; Herencsar et al, ; Kumar & Chaturvedi, ; Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei & Yuce, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ) are found more advantageous over multifunction filters based on voltage‐mode approach (Minaei et al, ; Tsukutani et al, ; Tsukutani et al, ). The study of circuits of voltage input voltage output‐type multifunction filters (Channumsin et al, ; Herencsar et al, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Minaei et al, ; Mohan et al, ; Pushkar e...…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the multifunction filters based on current‐mode approach (Channumsin et al, ; Chaturvedi et al, ; Chaturvedi & Maheshwari, ; Herencsar et al, ; Kumar & Chaturvedi, ; Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei & Yuce, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ) are found more advantageous over multifunction filters based on voltage‐mode approach (Minaei et al, ; Tsukutani et al, ; Tsukutani et al, ). The study of circuits of voltage input voltage output‐type multifunction filters (Channumsin et al, ; Herencsar et al, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Minaei et al, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Tsukutani et al, ; Tsukutani et al, ; Yuce, ; Yuce & Tez, ; and Yucel & Yuce, ) shows that these circuits have one or more of the following limitations: use of more number of active building blocks (Channumsin et al, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei et al, ; Minaei & Yuce, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Tsukutani et al, ; Tsukutani et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ), use of more number of passive components (Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, …”

Section: Introductionmentioning

confidence: 99%

Active‐C Realization of Multifunction Biquadratic Filter and Third‐Order Oscillator

et al. 2020

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The paper introduces a new circuit of voltage-mode multifunction biquadratic filter employing one fully differential second-generation current conveyor, three active resistors, and two capacitors. The circuit uses metal oxide semiconductor-based active resistors instead of passive resistors to make the circuit more suitable for monolithic integration as well as to provide additional feature of electronically controllable pole frequency. Low-pass, high-pass, band-pass, and band-reject filtering functions are simultaneously realizable without need of any component matching constraints from the proposed multifunction biquadratic filter. Additionally, the nonideal aspects of multifunction biquadratic filter circuit are studied. Furthermore, a third-order dual-mode quadrature oscillator is also derived from the low-pass function of the proposed multifunction filter to check its applicability. The proposed oscillator structure makes the output current readily available from high-impedance terminals. The performance of both multifunction biquadratic filter circuit and oscillator circuit is examined with the help of HSPICE simulations.

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“…Therefore, switchable and tunable filters are of great interest [2,3]. Tunable filters have been demonstrated with the use of semiconductor varactor diodes [4][5][6] and microelectromechanical systems (MEMS) [7][8][9][10]. For frequencies below 10 GHz, PIN diodes and varactor diodes are able to demonstrate Q > 50 with reduced cost, easier packaging, and lower bias voltage.…”

Section: Introductionmentioning

confidence: 99%

A Compact Switchable and Tunable Bandpass Filter

Karim¹,

Siyal²

2019

PIER M

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In this paper, an integrated switchable and tunable bandpass filter is designed, simulated, and fabricated. This integrated bandpass filter is able to switch as well as tune in the ultra-wideband (UWB) as well as 2.4 GHz band. At first, a UWB bandpass filter is developed which consists of two bent shorted quarter-wavelength stubs and a connecting half-wavelength stub. Subsequently, a 2.4 GHz bandpass filter is realized by connecting another half-wavelength stub on top of the UWB filter. RF pin-diodes are used for switching the bands between UWB and 2.4 GHz bandpass filter. The switchable bandpass filter converts into a tunable filter by changing the inductance or the length of shorted stubs through the pin diodes. A detailed parametric analysis is done for calculating different stubs lengths of the UWB as well 2.4 GHz bandpass filter. The simulation results show a high rejection level of > 40 dB at the lower frequency and a low insertion loss of 0.8 dB in the passband for UWB filter. For 2.4 GHz bandpass filter, the simulation results show an insertion loss of 0.42 dB and a 3 dB bandwidth of 796 MHz. The filter is fabricated on a Rogers 4003 substrate, and the measurement results of the switchable filter in the UWB band show an insertion loss of 2.1 dB and a 3 dB bandwidth of 7 GHz. In the case of 2.4 GHz bandpass filter, the insertion loss is 0.78 dB.

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Cascadable independently and electronically tunable voltage-mode universal filter with grounded passive components

Cited by 33 publications

References 16 publications

Universal Filter Based on Compact CMOS Structure of VDDDA

Universal Filter Based on Compact CMOS Structure of VDDDA

Active‐C Realization of Multifunction Biquadratic Filter and Third‐Order Oscillator

A Compact Switchable and Tunable Bandpass Filter

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