Active inductor-based tunable impedance matching network for RF power amplifier application

Saberkari, Alireza; Ziabakhsh, Soheil; Sarmiento, Fredy Hernán Martínez; Alarcón, Eduard

doi:10.1016/j.vlsi.2015.07.013

Cited by 28 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 The tunability of the proposed second-order all-pass filter An active inductor can be an attractive option for tuning time delay in the proposed second-order all-pass filter, since they offer a variety of advantages, e.g., small chip area, large and tunable inductance value and self-resonant frequency, and also compatibility with standard CMOS technology [15]. Fig.…”

Section: Non-ideality Considerationmentioning

confidence: 99%

Tunable Active Inductor-Based Second-Order All-Pass Filter as a Time Delay Cell for Multi-GHz Operation

Aghazadeh

Sarmiento

Saberkari

et al. 2019

Circuits Syst Signal Process

Self Cite

View full text Add to dashboard Cite

In this paper, a CMOS wide-band second-order voltage-mode allpass filter as a time delay cell is proposed. The proposed all-pass filter is made up of solely two transistors as active elements and four passive components. This filter demonstrates a group delay of approximately 60 ps within a bandwidth of 5 GHz, achieving maximum delay-bandwidth-product (DBW). The proposed circuit is highly linear and has an input-referred 1-dB compression point P 1dB of 2 dBm. The power consumption of the proposed circuit is only 10.3 mW. On the other hand, an active inductor is employed in the all-pass filter instead of a passive RLC tank, thereby the three passive components are eliminated, in order to tune the time delay and improve the size. In this case, even though the power consumption increases, the time delay can be controlled across an improved bandwidth of approximately 10 GHz. Moreover, the circuit demonstrates a 1-dB compression point P 1dB of 18 dBm. The proposed all-pass filter is simulated in TSMC 180-nm CMOS process parameters.

show abstract

Section: Non-ideality Considerationmentioning

confidence: 99%

Tunable Active Inductor-Based Second-Order All-Pass Filter as a Time Delay Cell for Multi-GHz Operation

Aghazadeh

Sarmiento

Saberkari

et al. 2019

Circuits Syst Signal Process

Self Cite

View full text Add to dashboard Cite

show abstract

“…As a consequence of its non-reciprocity feature, a gyrator is able to emulate an inductive reactance at one port while a capacitance is being connected to the other port. This feature has always been of wide interest for signal-processing circuits to replace bulky inductors by on-chip integration of a gyrator-C circuits [12], in which a gyrator is synthesized by means of linear amplifiers. Unlikely, conventional gyrator implementations using linear amplifier is not considered as a potential candidate for power applications due to poor efficiency.…”

Section: Dab Gyrator-enabled Variable Inductancementioning

confidence: 99%

“…Regard to our proposal, it is of great interest to examine the phase angle between and by converting (12) to the polar form. The phase angle can be expressed as:…”

Section: A Pll Control Design the Proposed Controlmentioning

confidence: 99%

A PLL control for self-tuning of parallel wireless power transfer receivers utilizing switch-mode gyrator emulated inductors

Saad

García

Alou

et al. 2017

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)

View full text Add to dashboard Cite

In multiple receivers wireless power transfer (WPT) systems, it is preferable to retune the resonant frequency of every receiver to the transmitter operating frequency in front of frequency mismatches. This paper discusses a proposal for electronic tuning for WPT receivers by means of a variable active switch-mode inductance. The proposed method benefits from the gyrator concept to emulate a variable inductance. Instead of the conventional approach of linear amplifier based implementation of a gyrator, a switch-mode gyrator circuit is exploited for more efficient operation. Additionally, a PLL-like control is presented to enable self-tuning for the receiver resonant tank. Furthermore, a design-space characterization for the system dynamic behavior has been discussed to show the control robustness and the instabilities (including slow-scale and fast-scale chaotic instabilities) it may undergo.

show abstract

“…Fig. 7 Symbol of the transistor and small equivalent signal circuit Input and output adaptation play a very important role in the response of the final filter as the addition of adaptation stages directly influences its performance [13] [14]. Then, the choice of input and output buffers must be thoroughly studied so that they fulfil their role of adaptation without changing other critical characteristics…”

Section: Designed Active Filtermentioning

confidence: 99%

A selective active filter for the 5G in the mm-wave band in pHEMT technology

Halkhams¹,

Mazer²,

Bekkali³

et al. 2017

ces

View full text Add to dashboard Cite

The modern telecommunication systems such as mobile radio network, wireless and satellites require the use of tunable high selective filters with a high quality factor Q. Unlike large sized passive filters whose frequency is difficult to tune, active inductor based filters have lots of benefits such as electronic frequency tuning, simplicity of integration and minimizing size. However, the intrinsic losses of the transistors limit the quality factor and the energy consumption remains significant. To remedy, various techniques exist in literature to boost Q including biasing conditions optimization in order to save energy and improve the quality factor of the filter. The centre frequency tuning requires varactors widely used in filtering and low noise amplifier circuits. In this way the frequency may be varied without affecting the quality factor of the filter. In this paper an active filter using 0.15 µm PHEMT technology is proposed with a centre frequency of 38 GHz for use in the next 5 generation of mobile network system. The aforementioned filter presents a high quality factor, a very good out-of-band rejection 194 Imane Halkhams et al. and very low noise figure. This filter will be used in the implementation of high frequency transceivers in the millimetre band.

show abstract

Active inductor-based tunable impedance matching network for RF power amplifier application

Cited by 28 publications

References 18 publications

Tunable Active Inductor-Based Second-Order All-Pass Filter as a Time Delay Cell for Multi-GHz Operation

Tunable Active Inductor-Based Second-Order All-Pass Filter as a Time Delay Cell for Multi-GHz Operation

A PLL control for self-tuning of parallel wireless power transfer receivers utilizing switch-mode gyrator emulated inductors

A selective active filter for the 5G in the mm-wave band in pHEMT technology

Contact Info

Product

Resources

About