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Tunable balanced BPF with wide tuning range and high selectivity

Xian Wang, Dewei Zhang, Qing Liu, Dalong Lv, Yi Zhang, Shuxing Wang
2019 IEICE Electronics Express  
A highly-selective tunable balanced bandpass filter (BPF) with wide tuning range of center frequency is presented.  ...  And experimental and simulated results are in good agreement. key words: balanced BPF, direct feed, wide tuning range, high selectivity Classification: Microwave and millimeter wave devices, circuits,  ...  In this letter, a tunable balanced BPF with wide frequency-tuning range and high selectivity is proposed.  ... 
doi:10.1587/elex.16.20190682 fatcat:lwnwdbb4xjf55kwpl2pbul2v2e

High-order and tunable balanced bandpass filters using mixed technology resonators

Dakotah Simpson, Dimitra Psychogiou
2021 International journal of microwave and wireless technologies  
This paper reports on high-order balanced bandpass filters (BPFs) that are continuously tunable in terms of frequency and bandwidth and can be intrinsically switched-off.  ...  For all states, the common mode was suppressed by at least 35 dB at the center frequency and within a wide range.  ...  The authors would like to thank Keysight for providing access to the software ADS and Rogers Corporation for providing the RO4003C substrate.  ... 
doi:10.1017/s1759078721000453 fatcat:w2w623w5wnf5rayzruqashzk4i

A Microfabricated Bandpass Filter with Coarse-Tuning and Fine-Tuning Ability Based on IPD Process and PCB Artwork

Junzhe Shen, Tian Qiang, Minjia Gao, Yangchuan Ma, Junge Liang, Yanfeng Jiang
2022 Micromachines  
The BPF chip was installed on the printed circuit board artwork with Au bonding wire and attached to a die sink.  ...  Under fine-tuning mode, the minimum tuning value and the average tuning value of the proposed BPF can be accurate to 1.0 MHz and 4.7 MHz for the center frequency and 1.0 MHz and 12.8 MHz for the transmission  ...  Additionally, some other methods have also been utilized in the field of wide-tuning, such as ferroelectric capacitors with tunable CSRR scatterers [12] , a dualband, dual-mode SIW balanced BPF tuned  ... 
doi:10.3390/mi13010123 pmid:35056289 pmcid:PMC8779725 fatcat:nzhd2emlkzds3adqqqwl6ledxi

Wideband Tunable Rf Filters For Channel Selection In Crowded Spectral Bands

Sanghoon Park, Ki-Jin Kim, Kwang-Ho Ahn, Hyeon-Woo Lee
2013 Zenodo  
It is very effective way to utilize a very wide tunable filter in co-existing multi-standards wireless communications environment.  ...  The RF band-pass filter (BPF) and notch filter achieve 1.8dB and 1.6dB insertion losses and 18 dB and 17 dB attenuations, respectively. The quality factor show greater than 30.  ...  ACKNOWLEDGMENT The authors would like to acknowledge the support of the Korea Electronics Technology Institute (KETI), and notify that this work is founded by Ministry of Science, ICT, and Future Planning  ... 
doi:10.5281/zenodo.1088548 fatcat:xaosiusjxrd7virlto2gr3p6aq

A Varactor-Based Very Compact Tunable Filter with Wide Tuning Range for 4G and Sub-6 GHz 5G Communications

Yasir I. A. Al-Yasir, Naser Ojaroudi Parchin, Yuxiang Tu, Ahmed M. Abdulkhaleq, Issa T. E. Elfergani, Jonathan Rodriguez, Raed A. Abd-Alhameed
2020 Sensors  
Two varactor diodes and biasing circuit components are selected and designed to meet the targeted performance for the tunable filter.  ...  The coupling coefficients between the adjacent and non-adjacent resonators are used to tune the filter at the required center frequency to cover the frequency range from 2.5 to 3.8 GHz.  ...  wideband BPFs [12, 13] , high-pass filters (HPFs) [14] , balanced BPFs [15] [16] [17] , band-stop filters [18] and multi-band BPFs [19, 20] .  ... 
doi:10.3390/s20164538 pmid:32823654 fatcat:wmwj5qe2wfepphty6uklvkpgja

Reconfigurable Bandwidth and Tunable Dual-Band Bandpass Filter Design for Ultra-Wideband (UWB) Applications

Mushtaq A. Alqaisy, C. Chakrabraty, J. Ali, A. R. H. Alhawari, Tale Saeidi
2016 Electromagnetics  
reviewers for their useful and constructive comments.  ...  Acknowledgments The authors would like to express their thanks to the head of Microwave Research Group, University of Technology, Iraq, for the valuable discussions and support and also wish to thank the  ...  provided this filter with high selectivity in the transmission band.  ... 
doi:10.1080/02726343.2016.1207766 fatcat:ugugwmanj5fhpe33bjz7hntubu

A Survey on Reconfigurable Microstrip Filter–Antenna Integration: Recent Developments and Challenges

Yuxiang Tu, Yasir I. A. Al-Yasir, Naser Ojaroudi Parchin, Ahmed M. Abdulkhaleq, Raed A. Abd-Alhameed
2020 Electronics  
However, with the rapid development of current fourth-generation (4G) and fifth-generation (5G) applications, compact and reconfigurable structures with a wide tuning range are in high demand.  ...  tuning techniques.  ...  Recently, a very compact wideband microstrip filter antenna design with high gain and high selectivity was proposed in [71] .  ... 
doi:10.3390/electronics9081249 fatcat:76fwkvov7zewbogoo4adjend4y

A 1.2 V and 69 mW 60 GHz Multi-channel Tunable CMOS Receiver Design

A. Oncu
2015 Radioengineering  
A multi-channel receiver operating between 56 GHz and 70 GHz for coverage of different 60 GHz bands worldwide is implemented with a 90 nm Complementary Metal-Oxide Semiconductor (CMOS) process.  ...  The achieved conversion gain by coarse gain control is between 4.8 dB and 54.9 dB. The millimeter-wave receiver circuit is biased with a 1.2 V supply voltage. The measured power consumption is 69 mW.  ...  Lai Chee Hong and Mr. Pong for their valuable discussion on low power-LNA and layout designs.  ... 
doi:10.13164/re.2015.0142 fatcat:oht77la4jbcqrl6q3gtwbwgs2m

[Papers] A Multi Spectral Imaging System with a 71dB SNR 190-1100 nm CMOS Image Sensor and an Electrically Tunable Multi Bandpass Filter

Yasuyuki Fujihara, Yusuke Aoyagi, Maasa Murata, Satoshi Nasuno, Shunichi Wakashima, Rihito Kuroda, Kohei Terashima, Takahiro Ishinabe, Hideo Fujikake, Kazuhiro Wako, Shigetoshi Sugawa
2018 ITE Transactions on Media Technology and Applications  
Acknowledgment This work was partly supported by JSPS KAKENHI Grant Number 15H62245 and 17H04921.  ...  The developed CIS has two operation modes: a wide dynamic range LOFIC operation and a high SNR operation with over 70dB SNR. The timing diagrams are shown in Fig.3 .  ...  Orange and blue dots show wide dynamic range LOFIC operation mode (S1, S2) and green dots shows high SNR mode. Fig. 5 5 Measured SNR as a function of signal electrons in high SNR mode.  ... 
doi:10.3169/mta.6.187 fatcat:6vel6t5vcrdwbg7rphnpvwq2ou

A Research on Microstrip Ultrawide Band Filters using Defected Ground Structure Techniques

Various modified and hybrid defected ground structure techniques are employed to achieve high return loss, low insertion loss, ultra compactness, good selectivity and linearity in filters.  ...  Study reveals that the proper selection and incorporation of DGS techniques while designing microstrip ultra wideband filter optimizes the various vital parameters which enhances its performance and practicability  ...  Tuning elements requirement in wideband tunable filters can be minimized using cross-shaped MMR. Different circuit models are presented to tune external quality factor of proposed UWB BPF.  ... 
doi:10.35940/ijitee.j9372.0881019 fatcat:klxn4w2qf5g2dl5hfbbji2b34i

Fabrication of Compact Microstrip Line-Based Balun-Bandpass Filter with High Common-Mode Suppression

Chia-Mao Chen, Shoou-Jinn Chang, Yen-Liang Pan, Cheng-Yi Chen, Cheng-Fu Yang
2014 Mathematical Problems in Engineering  
For that, a new device with both filter-type and balun-type characteristics was investigated and fabricated.  ...  Both magnetic and electric coupling structures were implemented to provide high performance balun-bandpass responses.  ...  Acknowledgments The authors acknowledge financial supports of MOST 103-2221-E-230-013 and MOST 103-2221-E-390-026.  ... 
doi:10.1155/2014/985064 fatcat:su4unndmbnh6zde5ugvx2gcc3y

A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges

Yasir I. A. Al-Yasir, Naser Ojaroudi Parchin, Ahmed M. Abdulkhaleq, Mustafa S. Bakr, Raed A. Abd-Alhameed
2020 Sensors  
Balanced filters surveyed include recent single-, dual-, tri-, and wide-band BPFs, which employ different design techniques and accomplish different performances for current and future wireless applications  ...  Challenges and future developments of balanced microstrip bandpass filters (BPFs) are also presented in this paper.  ...  Compared with the single-ended BPFs, the presented balanced designs have the advantages of high common-mode wideband attenuation, high noise immunity, high passband selectivity, and wide-stopband harmonic  ... 
doi:10.3390/s20082356 pmid:32326321 fatcat:ynlj6uvjrbaadk25k3i33xdrgq

Widely-tunable low-phase-noise coherent receiver using an optical Wadley loop

Arthur James Lowery, Bill Corcoran, Chen Zhu
2015 Optics Express  
This could have applications in Quadrature Amplitude Modulation (QAM) receivers with high constellation sizes, optical OFDM receivers with long symbol durations, and wide-range high spectral resolution  ...  The Wadley Loop is a method of down-converting RF signals over a wide frequency range using a low-quality widely-tunable oscillator and a high-stability frequency comb reference.  ...  An input signal with a test frequency fin between zero and f in,max , is mixed (mixer M1) with the output of a widely-tunable oscillator (WTO) operating in a range above the input frequency range.  ... 
doi:10.1364/oe.23.019891 pmid:26367649 fatcat:cf5qny7l2bdvrkzvnzdpvwe7pm

Bandpass Filter with Interdigital Capacitor in Open Loop Resonator for Wimax, RF-MEMS, and PCS Applications

Kangana Saini, Ashok Kumar, Kundan Singh Rathore, Muquaddar Ali
2020 International Journal of Advances in Microwave Technology  
The proposed filter makes it very desirable for WiMAX and high-performance RF microelectromechanical system (RF-MEMS) tunable filter and PCS applications.  ...  In this paper, the design of a bandpass filter (BPF) using open-loop resonator (OLR) with interdigital capacitor added in one set of a half-wavelength resonator is presented.  ...  The coupling coefficient can conveniently be tuned up at the desired valve within a wide range bandwidth.  ... 
doi:10.32452/ijamt.2020.223226 fatcat:54vwxqljn5dfja2mqjv2uhctgu

A Survey and Quantitative Evaluation of Integrated Circuit-Based Antenna Interfaces and Self-Interference Cancellers for Full-Duplex

Tingjun Chen, Sasank Garikapati, Aravind Nagulu, Aditya Gaonkar, Manav Kohli, Igor Kadota, Harish Krishnaswamy, Gil Zussman
2021 IEEE Open Journal of the Communications Society  
In particular, we focus on two types of integrated shared antenna interfaces including electrical-balance duplexers and circulators.  ...  Various approaches to achieve TX-RX isolation at the antenna interface and SI cancellation (SIC) in the RF/analog and digital domains have been demonstrated, with a focus on using bench-top off-the-shelf  ...  Moreover, each tunable DoF is associated with certain tuning range and quantization (e.g., phase control with 8-bit resolution within the 360 • tuning range [43] ), which will affect and limit the performance  ... 
doi:10.1109/ojcoms.2021.3098476 fatcat:qypdqosufratzpiljwladngovq
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