Analysis and Design of Dual-Band Rectifier Using Novel Matching Network

Liu, Jian; Zhang, Xiu Yin; Yang, Chunling

doi:10.1109/tcsii.2017.2698464

Cited by 63 publications

(32 citation statements)

References 18 publications

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“…The first part of the matching unit is a simple microstrip line (TL1) with the characteristics impedance

Z_{normalchar}

and the electrical length

θ_{normalchar false(normali false)}

(

i = 1

for

f_{1} = 1.5 GHz

i = 2

for

f_{2} = 2.6 GHz

). The line TL1 basically transforms the frequency dependent uncorrelated load impedances (

Z_{normalL}^{^{'}} = R_{1} + j X_{1}

f_{1}

and

Z_{normalL}^{^{'}} = R_{2} + j X_{2}

f_{2}

) to the impedances

Z_{in 1}

(

f_{1}

) and

Z_{in 1}

(

f_{2}

), which are complex conjugate to each other [32–34]. The simple microstrip line (TL1) is taken here while considering the ratio ( r ) of two extreme frequencies as

r = f_{2} / f_{1}

(where

f_{2} > f_{1}

).…”

Section: Differential Rectifying Circuit Designmentioning

confidence: 99%

“…Since, the electrical length of any microstrip line is proportional to the frequency, hence while using the aforementioned frequency ratio these lengths can easily be related as

θ_{char false(2 false)} = r \times θ_{char false(1 false)}

. As a basic design principle, the parameters of TL1 are chosen in such a way so that the input impedance values

Z_{in 1} false(f_{1} false)

and

Z_{in 2} false(f_{2} false)

must be complex conjugate to each other, as illustrated by the following relations represented in (3) and (4) [34]:

\begin{matrix} right left right left right left right left right left right left0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em3pt \\ Z_{in 1} (f_{1}) & = Z_{normalchar} 2.470em2.470em[\frac{(R_{1} + normalj X_{1}) + j (Z_{char}) \tan θ_{normalchar 1}}{Z_{char} + normalj (R_{1} + normalj X_{1}) \tan θ_{normalchar 1}} 2.470em2.470em] \\ = R_{normalin 1} + normalj X_{normalin 1} \end{matrix}

\begin{matrix} right left right left right left right left right left right left0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em3pt \\ Z_{in 2} (f_{2}) & = Z_{normalchar} 2.470em2.470em[(R_{2} + normalj X_{2}) + j \end{matrix}

…”

Section: Differential Rectifying Circuit Designmentioning

confidence: 99%

See 1 more Smart Citation

Broadband integrated rectenna using differential rectifier and hybrid coupler

Chandravanshi

Katare²,

Akhtar³

2020

IET Microwaves, Antennas & Propagation

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“…The first part of the matching unit is a simple microstrip line (TL1) with the characteristics impedance

Z_{normalchar}

and the electrical length

θ_{normalchar false(normali false)}

(

i = 1

for

f_{1} = 1.5 GHz

i = 2

for

f_{2} = 2.6 GHz

). The line TL1 basically transforms the frequency dependent uncorrelated load impedances (

Z_{normalL}^{^{'}} = R_{1} + j X_{1}

f_{1}

and

Z_{normalL}^{^{'}} = R_{2} + j X_{2}

f_{2}

) to the impedances

Z_{in 1}

(

f_{1}

) and

Z_{in 1}

(

f_{2}

), which are complex conjugate to each other [32–34]. The simple microstrip line (TL1) is taken here while considering the ratio ( r ) of two extreme frequencies as

r = f_{2} / f_{1}

(where

f_{2} > f_{1}

).…”

Section: Differential Rectifying Circuit Designmentioning

confidence: 99%

“…Since, the electrical length of any microstrip line is proportional to the frequency, hence while using the aforementioned frequency ratio these lengths can easily be related as

θ_{char false(2 false)} = r \times θ_{char false(1 false)}

. As a basic design principle, the parameters of TL1 are chosen in such a way so that the input impedance values

Z_{in 1} false(f_{1} false)

and

Z_{in 2} false(f_{2} false)

must be complex conjugate to each other, as illustrated by the following relations represented in (3) and (4) [34]:

\begin{matrix} right left right left right left right left right left right left0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em3pt \\ Z_{in 1} (f_{1}) & = Z_{normalchar} 2.470em2.470em[\frac{(R_{1} + normalj X_{1}) + j (Z_{char}) \tan θ_{normalchar 1}}{Z_{char} + normalj (R_{1} + normalj X_{1}) \tan θ_{normalchar 1}} 2.470em2.470em] \\ = R_{normalin 1} + normalj X_{normalin 1} \end{matrix}

\begin{matrix} right left right left right left right left right left right left0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em 2em 0.278em3pt \\ Z_{in 2} (f_{2}) & = Z_{normalchar} 2.470em2.470em[(R_{2} + normalj X_{2}) + j \end{matrix}

…”

Section: Differential Rectifying Circuit Designmentioning

confidence: 99%

Broadband integrated rectenna using differential rectifier and hybrid coupler

Chandravanshi

Katare²,

Akhtar³

2020

IET Microwaves, Antennas & Propagation

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“…Yet, this matching network complicates the design. In [19], a dualband rectifier working at 0.915 and 2.45 GHz was introduced. The dual-band matching network is realized by an L-type network cascaded with a PI-type network, increasing the design complexity.…”

Section: Introductionmentioning

confidence: 99%

Design of Compact Dual-Band RF Rectifiers for Wireless Power Transfer and Energy Harvesting

Liu

Huang

2020

IEEE Access

Self Cite

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In this paper, we propose a compact dual-band impedance matching network (DBIMN) for radio frequency (RF) rectifiers. The DBIMN is achieved with a single-stage T-type network, with only three segments of the transmission line. We investigate the closed-form design equations, as a design guideline of the DBIMN. In addition, we propose the design methodology of the rectifier using the DBIMN. For validation, we design two dual-band rectifiers (0.915 and 2.45 GHz), for different input power levels. The rectifier with high input power level, is designed for a wireless power transmission (WPT) system. With a 12 dBm input power, the measured power conversion efficiencies (PCEs) are 81.7 and 73.1% at the working frequencies. The PCEs becomes 69.2 and 64.1% (at −1 dBm input power) for the low-power input rectifier that can be used in an RF energy harvesting (RF-EH) system. The simulated and measured results match each other well. Compared with previous designs, the proposed designs have advantages in compactness and high efficiency.

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“…A new approach of a cube based device formed using four 2 × 2 circular microstrip antenna array and four rectifiers has recently been reported to harvest RF energy from multiband signal in order to drive four LEDs and an electronic watch . Moreover, the reported work in References presents the analytical study in favor of harvesting energy from multiple sources simultaneously. It appears that in addition to using the multiband operation, the available output DC power can be further enhanced by improving the efficiency of the rectifying circuit.…”

Section: Introductionmentioning

confidence: 99%

“…In order to achieve this goal, the concept of power recycling has been implemented in literature using a branch-line coupler. 8 Recently, different types of rectifying circuit topologies, such as broadband, [9][10][11][12] ultrawideband, 13 multiband, [14][15][16][17][18][19][20] and so on have been reported for obtaining high efficiency. A broad band rectenna with the CPW feeding technique for the rectifying circuit has been earlier proposed in order to enhance the RF to dc conversion efficiency up to 73.4%.…”

Section: Introductionmentioning

confidence: 99%

An efficient dual‐band rectenna using symmetrical rectifying circuit and slotted monopole antenna array

Chandravanshi

Akhtar

2020

Int J RF Microw Comput Aided Eng

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In this article, an efficient dual‐band rectenna making use of the newly proposed symmetrical rectifying circuit working at the frequency of 1.8 and 2.45 GHz, is proposed. The proposed dual‐band rectifying circuit is combined with an array of compact wideband planar monopole modified circular slot antenna in order to facilitate the efficient rectenna design. The rectifying circuit employs symmetrical matching network in addition to the symmetrical rectifier thereby facilitating the suppression of the odd order harmonics. This eventually results into the higher output voltage as compared to the conventional rectifier circuits. Moreover, the dual‐band topology of the proposed rectenna increases the overall voltage by harvesting energy from two independent RF sources. The measured results of the fabricated structure show that the maximum RF to dc conversion efficiency of the proposed rectifier circuit reaches up to 70% at 9 dBm input RF power. From application point of view, the proposed rectenna circuit is tested to extract the RF energy from 1.8 GHz cellular and 2.45 GHz Wi‐Fi bands to energize a low‐power LED. The overall rectenna structure is reasonably compact providing good performance, which can potentially be employed for efficient wireless power transmission system.

show abstract

Analysis and Design of Dual-Band Rectifier Using Novel Matching Network

Cited by 63 publications

References 18 publications

Broadband integrated rectenna using differential rectifier and hybrid coupler

Broadband integrated rectenna using differential rectifier and hybrid coupler

Design of Compact Dual-Band RF Rectifiers for Wireless Power Transfer and Energy Harvesting

An efficient dual‐band rectenna using symmetrical rectifying circuit and slotted monopole antenna array

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