Pub Date : 2022-08-12DOI: 10.1109/IWS55252.2022.9977886
Song Zhang, Hao Xue, Xiaonan Wu, Mingyang Chang, Fangjie Cheng, Long Li
The Airy beams have intrigued many researchers because of their unusual characteristics. There are few studies on Airy beams in the microwave field, and the devices currently used to create Airy beams are complex. So, in this paper, a scalar holographic metasurface is proposed to generate a one-dimensional Airy beam, which reduces the complexity of the generation device of the Airy beam. The simulation results at 12 GHz show this paper's proposed method's correctness.
{"title":"Generation of 1D-Airy Beams Based on Scalar Holographic Metasurface","authors":"Song Zhang, Hao Xue, Xiaonan Wu, Mingyang Chang, Fangjie Cheng, Long Li","doi":"10.1109/IWS55252.2022.9977886","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977886","url":null,"abstract":"The Airy beams have intrigued many researchers because of their unusual characteristics. There are few studies on Airy beams in the microwave field, and the devices currently used to create Airy beams are complex. So, in this paper, a scalar holographic metasurface is proposed to generate a one-dimensional Airy beam, which reduces the complexity of the generation device of the Airy beam. The simulation results at 12 GHz show this paper's proposed method's correctness.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122552947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/IWS55252.2022.9978087
Liangjie Qiu, Jie Zhang, Xiuping Li, Wenyu Zhao, Xiaobin Guo
A high-order-mode two-feed orbital angular momentum (OAM) patch antenna at Ka-band is proposed in this paper. The circularly polarized OAM patch antenna has an impedance bandwidth of 23.7% with more than 10-dB return loss. A vortex beam carrying $l=pm 1$ OAM mode is generated with a mode purity over 85% from 26.5 GHz to 33 GHz. Additionally, by loading a low-profile lens, the maximum gain can be improved from 6.7 dBic to 15.7 dBic, and the beam divergence angle converges from 37° to 6°.
{"title":"A High-Order-Mode OAM Patch Antenna with High Gain and Low Divergence","authors":"Liangjie Qiu, Jie Zhang, Xiuping Li, Wenyu Zhao, Xiaobin Guo","doi":"10.1109/IWS55252.2022.9978087","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9978087","url":null,"abstract":"A high-order-mode two-feed orbital angular momentum (OAM) patch antenna at Ka-band is proposed in this paper. The circularly polarized OAM patch antenna has an impedance bandwidth of 23.7% with more than 10-dB return loss. A vortex beam carrying $l=pm 1$ OAM mode is generated with a mode purity over 85% from 26.5 GHz to 33 GHz. Additionally, by loading a low-profile lens, the maximum gain can be improved from 6.7 dBic to 15.7 dBic, and the beam divergence angle converges from 37° to 6°.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122720665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A design method of the 3-dB waveguide-to-microstrip power dividers with wide isolated frequency band has been presented in this study. A new TaN film resistor on AIN ceramic substrate, which is not in contact with the microstrip probes, is designed in the waveguide to improve the isolation of the divider. The measured results show above 10 dB minimum isolation in the range of 28–37 GHz. In addition, the return loss is better than 15 dB at all ports, with an average loss of 0.57 dB. The isolation design for the divider proposed in this study can achieve a wide bandwidth without increasing loss.
{"title":"A New Design Methodology for the Wide Isolated Waveguide-to-Microstrip In-phase Power Divider","authors":"Zhang Dang, Hai-Fan Zhu, Jian Huang, Huali Zhu, Yong Zhang","doi":"10.1109/IWS55252.2022.9977611","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977611","url":null,"abstract":"A design method of the 3-dB waveguide-to-microstrip power dividers with wide isolated frequency band has been presented in this study. A new TaN film resistor on AIN ceramic substrate, which is not in contact with the microstrip probes, is designed in the waveguide to improve the isolation of the divider. The measured results show above 10 dB minimum isolation in the range of 28–37 GHz. In addition, the return loss is better than 15 dB at all ports, with an average loss of 0.57 dB. The isolation design for the divider proposed in this study can achieve a wide bandwidth without increasing loss.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123102095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/IWS55252.2022.9977751
Haoyang Fu, Qiang Zhou, Lei Zhu, Zhihu Wei, Jianya Zhang
This paper presents a pulse waveform control method for multiple harmonic eliminations of multilevel RF-PWM. By considering the waveform synthesis of arbitrary multiple 3-level pulses, possible parameter groups of the pulses are obtained to eliminate multiple harmonics and make the fundamental component proportional to the input envelope. Taking the third and fifth harmonic elimination of multilevel RF-PWM as an example, two 3-level pulse waveform control methods are obtained. Each method can generate two different signal waveforms which have different influences on the performance of the output signal. The feasibility of the two methods and the effect of two waveforms on the performance are verified by simulation.
{"title":"A Pulse Waveform Control Method for Multiple Harmonic Elimination of Multilevel RF-PWM","authors":"Haoyang Fu, Qiang Zhou, Lei Zhu, Zhihu Wei, Jianya Zhang","doi":"10.1109/IWS55252.2022.9977751","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977751","url":null,"abstract":"This paper presents a pulse waveform control method for multiple harmonic eliminations of multilevel RF-PWM. By considering the waveform synthesis of arbitrary multiple 3-level pulses, possible parameter groups of the pulses are obtained to eliminate multiple harmonics and make the fundamental component proportional to the input envelope. Taking the third and fifth harmonic elimination of multilevel RF-PWM as an example, two 3-level pulse waveform control methods are obtained. Each method can generate two different signal waveforms which have different influences on the performance of the output signal. The feasibility of the two methods and the effect of two waveforms on the performance are verified by simulation.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"1866 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131367397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a compact integrated duplex filtering antenna is proposed based on co-shared substrate integrated waveguide (SIW) cavity. Firstly, a dual-mode TE102 and (TE201 modes) rectangular cavity with two input ports is utilized as a common feeding cavity to respectively contribute one transmission poles for each channel. And then, an additional square cavity with a rectangular ring slot is coupled from the lower feeding cavity for both dual-mode excitation and duplexing passband radiation. To verify the proposed concept, a prototype duplex filtering antenna is simulated. The duplex filtering antenna resonates at 7.27 GHz and 8.06 GHz with a low cross-polarization and a high gain of 5.82 dBi and 6.91 dBi, respectively.
{"title":"Compact Integrated Duplex Filtering Antenna with Common Feeding and Radiating SIW Cavities","authors":"Gang Zhang, Rui Li, Xinyu Yang, Hua Yang, Xiu Yin Zhang, Wanchun Tang","doi":"10.1109/IWS55252.2022.9978013","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9978013","url":null,"abstract":"In this paper, a compact integrated duplex filtering antenna is proposed based on co-shared substrate integrated waveguide (SIW) cavity. Firstly, a dual-mode TE102 and (TE201 modes) rectangular cavity with two input ports is utilized as a common feeding cavity to respectively contribute one transmission poles for each channel. And then, an additional square cavity with a rectangular ring slot is coupled from the lower feeding cavity for both dual-mode excitation and duplexing passband radiation. To verify the proposed concept, a prototype duplex filtering antenna is simulated. The duplex filtering antenna resonates at 7.27 GHz and 8.06 GHz with a low cross-polarization and a high gain of 5.82 dBi and 6.91 dBi, respectively.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116515822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, we consider the average symbol error probability (SEP) performance of a hybrid satellite-terrestrial relay network with non-orthogonal multiple access (NOMA) and decode-and-forward (DF) protocol. In particular, we derived the closed-form expression of the average SEP for both far-user and near-user in a satellite-to-terrestrial channel. Numerical results are presented to prove the correctness of the derived formulas and illustrate the effect of some pivotal factors on the average SEP of the considered system.
{"title":"Study on the Symbol Error Probability of the NOMA-Based Hybrid Satellite- Terrestrial Relay Networks","authors":"Zhongyuan Zhao, Guanjun Xu, Xuhui Wang, Qinyu Zhang","doi":"10.1109/IWS55252.2022.9977462","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977462","url":null,"abstract":"In this paper, we consider the average symbol error probability (SEP) performance of a hybrid satellite-terrestrial relay network with non-orthogonal multiple access (NOMA) and decode-and-forward (DF) protocol. In particular, we derived the closed-form expression of the average SEP for both far-user and near-user in a satellite-to-terrestrial channel. Numerical results are presented to prove the correctness of the derived formulas and illustrate the effect of some pivotal factors on the average SEP of the considered system.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121878375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1109/IWS55252.2022.9978089
Xu-yao Zhang, Yuedong Xu, Shengying Zou, Peng Jin, Jie Lin, Shu Lin
With the gradual maturity of 5G technology, the structure design and performance optimization of microwave filters have become one of the important research topics in the field of RF communication. In this paper, the metal micro-coaxial structure is used to design a bandpass filter with a center frequency of about 28GHz. The structure form of short transversal line is adopted, the order is 5, and the 3dB bandwidth is about 20.3%. In-band insertion loss is greater than -1.19dB, The out-of-band suppression is less than -47dB and -30dB in the frequency band larger than 38GHz and smaller than 18GHz, respectively. The voltage standing wave ratio at the center frequency is 1.0512. The metal micro-coaxial structure provides a high isolation degree for the filter, and the insertion loss is smaller than the same type of filter, which has good engineering application value.
{"title":"Design of Band-Pass Microwave Filter Based on Metal Micro-Coaxial Structure","authors":"Xu-yao Zhang, Yuedong Xu, Shengying Zou, Peng Jin, Jie Lin, Shu Lin","doi":"10.1109/IWS55252.2022.9978089","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9978089","url":null,"abstract":"With the gradual maturity of 5G technology, the structure design and performance optimization of microwave filters have become one of the important research topics in the field of RF communication. In this paper, the metal micro-coaxial structure is used to design a bandpass filter with a center frequency of about 28GHz. The structure form of short transversal line is adopted, the order is 5, and the 3dB bandwidth is about 20.3%. In-band insertion loss is greater than -1.19dB, The out-of-band suppression is less than -47dB and -30dB in the frequency band larger than 38GHz and smaller than 18GHz, respectively. The voltage standing wave ratio at the center frequency is 1.0512. The metal micro-coaxial structure provides a high isolation degree for the filter, and the insertion loss is smaller than the same type of filter, which has good engineering application value.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134476153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the past two years, the Fiber-to-the-room (FTTR) solution has been widely deployed, which provides strong support for the usage of indoor Q-band mmWave communication. To reduce the peak-to-peak ratio (PAPR) requirements of RF components, single carrier (SC) modulation is adopted by Q-band mmWave communication. For SC communication, the fractional sampling clock offset influences link quality a lot. By inserting zero correlation zone (ZCZ) sequences between data symbols and doing equalization in frequency domain, the clock offset could be compensated at certain degree. To further improve the performance, a fractional sampling clock offset compensation method is proposed here and maximum 5.2dB gain of Signal-to-Ratio (SNR) is achieved.
{"title":"Efficient fractional sampling clock offset compensation method for Q-band mmWave communication in fiber-to-the-room scenario","authors":"Tianhai Chang, Zhibiao Liang, Xiaoyong Liu, Qi Liu, Xiaodong Wang, Zhaomei Chen, Wenxiang Xiang, Yu Qiu","doi":"10.1109/IWS55252.2022.9978057","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9978057","url":null,"abstract":"In the past two years, the Fiber-to-the-room (FTTR) solution has been widely deployed, which provides strong support for the usage of indoor Q-band mmWave communication. To reduce the peak-to-peak ratio (PAPR) requirements of RF components, single carrier (SC) modulation is adopted by Q-band mmWave communication. For SC communication, the fractional sampling clock offset influences link quality a lot. By inserting zero correlation zone (ZCZ) sequences between data symbols and doing equalization in frequency domain, the clock offset could be compensated at certain degree. To further improve the performance, a fractional sampling clock offset compensation method is proposed here and maximum 5.2dB gain of Signal-to-Ratio (SNR) is achieved.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134066410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The optical transparency of the microwave absorber is always emphasized, the effect of uneven transmittance which affects the imaging was ignored, thereby hindering further window application. Under the limitation of using uniform film, an absorber using transparent conductive film is designed for good-visual perception inspired by the Jaumann screen. Through adjusting impedance matching of the structure, the proposed absorber achieves 90% absorption in the range of 9.4 to 26 GHz (fractional bandwidth 93.7%). Meanwhile, the proposed structure measures 76.6% transmittance and 0.37% haze, denoting the application potential. It is believed that the proposed design strategy promotes the practicality process of transparent absorbers.
{"title":"Optical transparent microwave absorber for high-quality imaging","authors":"Zicheng Song, Pingping Min, Ruicong Zhang, Jiaqi Zhu","doi":"10.1109/IWS55252.2022.9977499","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977499","url":null,"abstract":"The optical transparency of the microwave absorber is always emphasized, the effect of uneven transmittance which affects the imaging was ignored, thereby hindering further window application. Under the limitation of using uniform film, an absorber using transparent conductive film is designed for good-visual perception inspired by the Jaumann screen. Through adjusting impedance matching of the structure, the proposed absorber achieves 90% absorption in the range of 9.4 to 26 GHz (fractional bandwidth 93.7%). Meanwhile, the proposed structure measures 76.6% transmittance and 0.37% haze, denoting the application potential. It is believed that the proposed design strategy promotes the practicality process of transparent absorbers.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"38 10S 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131963838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents a novel wideband absorptive common-mode filter which is constructed by differential microstrip lines, two hybrid resonator unit-cells made of quarter-wavelength slot and microstrip structures, two lumped resistors, and a ground plane. Two resonator structures, including quar-ter-wavelength slot and microstrip lines, share the same resonant frequency at which the common-mode energy can be absorbed by lumped resistors. Furthermore, two resonator unit-cells are cascaded symmetrically beneath differential lines to realize bidi-rectional and wideband common-mode absorption. The measured results show that the proposed common-mode filter can exhibit low insertion loss for differential signals, and achieve a wide absorptive stopband from 1.55 to 2.65 GHz (Absorption ratio > 90%) with 52.38% fractional bandwidth simultaneously.
{"title":"Wideband Absorptive Common-Mode Filter Based on Hybrid Structures of Quarter-Wavelength Slot and Microstrip Resonators","authors":"Zhiyuan Niu, Peng Zhou, Hongxin Zhao, Shunli Li, Xiaoxing Yin","doi":"10.1109/IWS55252.2022.9977987","DOIUrl":"https://doi.org/10.1109/IWS55252.2022.9977987","url":null,"abstract":"This paper presents a novel wideband absorptive common-mode filter which is constructed by differential microstrip lines, two hybrid resonator unit-cells made of quarter-wavelength slot and microstrip structures, two lumped resistors, and a ground plane. Two resonator structures, including quar-ter-wavelength slot and microstrip lines, share the same resonant frequency at which the common-mode energy can be absorbed by lumped resistors. Furthermore, two resonator unit-cells are cascaded symmetrically beneath differential lines to realize bidi-rectional and wideband common-mode absorption. The measured results show that the proposed common-mode filter can exhibit low insertion loss for differential signals, and achieve a wide absorptive stopband from 1.55 to 2.65 GHz (Absorption ratio > 90%) with 52.38% fractional bandwidth simultaneously.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134244141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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