Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023229
Xuhui Chen, Chaolin Zeng, Jiasheng Huang
This paper introduces an design of frequency agile synthesizer which combines the direct frequency synthesis technology of analog and digital methods. Firstly, the DDS generates a low frequency signal which has low phase noise and fast frequency switching time, and then the harmonic generators provide the high frequency local oscillator signals to mix with the output of DDS, which realize the signal spectrum shifting and band broadening. Finally it generates a fast-switching signal with the bandwidth of 14~20GHz, frequency step of 0.5MHz, switching time less than 150ns, phase noise better than −100dBc /Hz@1kHz, and the spurious suppression better than −65dBc.
{"title":"Design of a Wideband Frequency Agile Synthesizer","authors":"Xuhui Chen, Chaolin Zeng, Jiasheng Huang","doi":"10.1109/ICMMT55580.2022.10023229","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023229","url":null,"abstract":"This paper introduces an design of frequency agile synthesizer which combines the direct frequency synthesis technology of analog and digital methods. Firstly, the DDS generates a low frequency signal which has low phase noise and fast frequency switching time, and then the harmonic generators provide the high frequency local oscillator signals to mix with the output of DDS, which realize the signal spectrum shifting and band broadening. Finally it generates a fast-switching signal with the bandwidth of 14~20GHz, frequency step of 0.5MHz, switching time less than 150ns, phase noise better than −100dBc /Hz@1kHz, and the spurious suppression better than −65dBc.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"290 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":"115999360","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/ICMMT55580.2022.10022815
Hao Cheng, G. Xiao, Xiaocheng Wang
A wideband antenna using BCB films is presented in the paper. The miniaturization of AMC unit cell is illustrated in the first section. It is composed of a non-uniform AMC ground, a dipole with E-shaped arms and a differential feed. The antenna exhibits a relative bandwidth of 9.28% (120.5 - 132.2 GHz). The maximum realized gain is about 7.65 dBi. There is remarkable improvement compared with antennas using uniform AMC grounds. With a low profile, the presented antenna is suitable for D-band on-chip wireless communications.
{"title":"A 126 GHz Low-Profile Wideband Antenna-in-Package with Non-Uniform Artificial Magnetic Conductor Surface","authors":"Hao Cheng, G. Xiao, Xiaocheng Wang","doi":"10.1109/ICMMT55580.2022.10022815","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022815","url":null,"abstract":"A wideband antenna using BCB films is presented in the paper. The miniaturization of AMC unit cell is illustrated in the first section. It is composed of a non-uniform AMC ground, a dipole with E-shaped arms and a differential feed. The antenna exhibits a relative bandwidth of 9.28% (120.5 - 132.2 GHz). The maximum realized gain is about 7.65 dBi. There is remarkable improvement compared with antennas using uniform AMC grounds. With a low profile, the presented antenna is suitable for D-band on-chip wireless communications.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"40 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":"123459681","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/ICMMT55580.2022.10022382
Xiaofei Fan, Kuikui Fan, G. Luo
A wideband substrate integrated coaxial line (SICL)-fed planar dipole antenna array is investigated for millimeter wave applications. Different from the traditional dual-armed dipole antenna, a balanced symmetric structure is formed to improve the cross-polarization level by canceling the vertically polarized electric-field components. Meanwhile, three slots are etched on the dipole arms for two operating modes to broaden the operating bandwidth of the dipole element. By these methods, the dipole antenna achieves a cross-polarization level below −28 dB and an impedance bandwidth of more than 65%. To further improve the gain of the antenna, a $1times 8$ dipole array is proposed. The measured results show that the proposed dipole array can achieve a wide −10 dB impedance bandwidth of more than 70.6% from 22.3 to 47 GHz, and cross-polarization levels below −20 dB. With the merits of wideband, low cross-polarization, low profile and easy integration, the proposed antenna array is valuable to millimeter wave communication.
{"title":"A Wideband Planar Dipole Antenna Array Fed by SICL for Millimeter Wave Applications","authors":"Xiaofei Fan, Kuikui Fan, G. Luo","doi":"10.1109/ICMMT55580.2022.10022382","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022382","url":null,"abstract":"A wideband substrate integrated coaxial line (SICL)-fed planar dipole antenna array is investigated for millimeter wave applications. Different from the traditional dual-armed dipole antenna, a balanced symmetric structure is formed to improve the cross-polarization level by canceling the vertically polarized electric-field components. Meanwhile, three slots are etched on the dipole arms for two operating modes to broaden the operating bandwidth of the dipole element. By these methods, the dipole antenna achieves a cross-polarization level below −28 dB and an impedance bandwidth of more than 65%. To further improve the gain of the antenna, a $1times 8$ dipole array is proposed. The measured results show that the proposed dipole array can achieve a wide −10 dB impedance bandwidth of more than 70.6% from 22.3 to 47 GHz, and cross-polarization levels below −20 dB. With the merits of wideband, low cross-polarization, low profile and easy integration, the proposed antenna array is valuable to millimeter wave communication.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"315 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":"123490736","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/ICMMT55580.2022.10022341
Junxiao Wang, H. Gao, Yutong Jiang, Senfeng Xu
In the process of practical application, coaxial cable is prone to soft faults such as wear. In this paper, the influence of faulty cable on impedance spectrum is analyzed by using the transmission line model of coaxial cable and the frequency characteristics of distributed parameters. Using impedance spectrum and propagation coefficient, based on integral transformation, the soft fault detection model of coaxial cable is theoretically analyzed, and the fault location diagnosis model is established. Then ADS software is used to simulate the fault detection model. The simulation results are good and the error is small. Finally, combined with the simulation steps, some suggestions for practical engineering application are given.
{"title":"Theory and Simulation of Coaxial Cable Soft Fault Detection Based on Integral Transform Model","authors":"Junxiao Wang, H. Gao, Yutong Jiang, Senfeng Xu","doi":"10.1109/ICMMT55580.2022.10022341","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022341","url":null,"abstract":"In the process of practical application, coaxial cable is prone to soft faults such as wear. In this paper, the influence of faulty cable on impedance spectrum is analyzed by using the transmission line model of coaxial cable and the frequency characteristics of distributed parameters. Using impedance spectrum and propagation coefficient, based on integral transformation, the soft fault detection model of coaxial cable is theoretically analyzed, and the fault location diagnosis model is established. Then ADS software is used to simulate the fault detection model. The simulation results are good and the error is small. Finally, combined with the simulation steps, some suggestions for practical engineering application are given.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"48 2-3 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":"123564420","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/ICMMT55580.2022.10022694
Bo Zhang, Yong Zhang
We present an E-plane waveguide coupler that can be used in the terahertz frequency band. Several slits are designed in the center of E-plane waveguide. These structures reduce the difficulty of metal processing of the E-plane coupler because of their smaller aspect ratio of branches. The simulation results of the proposed coupler are better than those of the traditional branch coupler. At 206~231 GHz, the amplitude imbalance between the through and the coupling ports of the coupler is less than 0.2dB, the phase imbalance is 90±0.5 degrees, the return loss and the isolation between output ports are better than 25 dB.
{"title":"Design of a Terahertz E-plane Waveguide Branch Coupler with Central Slits","authors":"Bo Zhang, Yong Zhang","doi":"10.1109/ICMMT55580.2022.10022694","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022694","url":null,"abstract":"We present an E-plane waveguide coupler that can be used in the terahertz frequency band. Several slits are designed in the center of E-plane waveguide. These structures reduce the difficulty of metal processing of the E-plane coupler because of their smaller aspect ratio of branches. The simulation results of the proposed coupler are better than those of the traditional branch coupler. At 206~231 GHz, the amplitude imbalance between the through and the coupling ports of the coupler is less than 0.2dB, the phase imbalance is 90±0.5 degrees, the return loss and the isolation between output ports are better than 25 dB.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"153 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":"123596465","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/ICMMT55580.2022.10022643
Jian Bai, B. Deng, Hongqiang Wang
Anti-ship missiles remain a major threat to surface ships. The outboard passive jamming is an important means for ships to counter radar guided anti-ship missiles. Therefore, it is essential to study the electromagnetic scattering characteristics and radar imaging results of the passive jamming. In this paper, the electromagnetic scattering characteristics of a ship target and a passive jammer are analyzed by using electromagnetic calculation simulation. The radar imaging results in THz band of the two targets are analyzed by using electromagnetic calculation data.
{"title":"Radar simulation imaging of outboard passive jamming","authors":"Jian Bai, B. Deng, Hongqiang Wang","doi":"10.1109/ICMMT55580.2022.10022643","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022643","url":null,"abstract":"Anti-ship missiles remain a major threat to surface ships. The outboard passive jamming is an important means for ships to counter radar guided anti-ship missiles. Therefore, it is essential to study the electromagnetic scattering characteristics and radar imaging results of the passive jamming. In this paper, the electromagnetic scattering characteristics of a ship target and a passive jammer are analyzed by using electromagnetic calculation simulation. The radar imaging results in THz band of the two targets are analyzed by using electromagnetic calculation data.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"80 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":"122110080","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/ICMMT55580.2022.10023178
Bo Zhou, S. Jin, Dunge Liu, Yuqian Yang, C. Mei, Chunjiao Fei, Lipeng Liu
This paper is about the complexity and difficulties of the full-wave electromagnetic simulation of the new integrated phased-array antennas. It has been becoming more and more difficult to simulate high density integrated antennas on system level since the new active phased array antennas with passive circuits such as Antenna-in-Package (AiP) or Antenna-on-Board become a major development trend. Different simulation methods and varieties of three-dimensional electromagnetic simulation software will be listed and compared, and a possible simulation method is pointed.
{"title":"The new highly integrated Millimeter-Wave Phased-Array Antennas Development and System-Level Simulation Solution","authors":"Bo Zhou, S. Jin, Dunge Liu, Yuqian Yang, C. Mei, Chunjiao Fei, Lipeng Liu","doi":"10.1109/ICMMT55580.2022.10023178","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023178","url":null,"abstract":"This paper is about the complexity and difficulties of the full-wave electromagnetic simulation of the new integrated phased-array antennas. It has been becoming more and more difficult to simulate high density integrated antennas on system level since the new active phased array antennas with passive circuits such as Antenna-in-Package (AiP) or Antenna-on-Board become a major development trend. Different simulation methods and varieties of three-dimensional electromagnetic simulation software will be listed and compared, and a possible simulation method is pointed.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"286 1 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":"116854984","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/ICMMT55580.2022.10022531
Jingyang Wang, Bo Wu, Liang Zhang, Xianliang Wu, Yue Ma, Ruikang Wang
In this paper, a circularly polarized annular slit antenna with a center frequency of 2.15 GHz realized through a metasurface was designed. The metasurface is made up of 5×5 periodic units. The impedance bandwidth of annular slit antenna is 2.08-2.5 GHz and after loading the metasurface the frequency range in which the axis ratio of the antenna is less than 3dB is 2.12-2.18 GHz and the gain reaches 3.5 dBi. The linear polarization antenna can be directly converted into circular polarization antenna by loading the metasurface. Reserch show that antenna loaded with metasurface can be widely used in electronic communication field.
{"title":"Circularly polarized annular slit antenna based on metasurface","authors":"Jingyang Wang, Bo Wu, Liang Zhang, Xianliang Wu, Yue Ma, Ruikang Wang","doi":"10.1109/ICMMT55580.2022.10022531","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022531","url":null,"abstract":"In this paper, a circularly polarized annular slit antenna with a center frequency of 2.15 GHz realized through a metasurface was designed. The metasurface is made up of 5×5 periodic units. The impedance bandwidth of annular slit antenna is 2.08-2.5 GHz and after loading the metasurface the frequency range in which the axis ratio of the antenna is less than 3dB is 2.12-2.18 GHz and the gain reaches 3.5 dBi. The linear polarization antenna can be directly converted into circular polarization antenna by loading the metasurface. Reserch show that antenna loaded with metasurface can be widely used in electronic communication field.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"28 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":"125815509","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/ICMMT55580.2022.10023409
Xiaolong Wang, Nan Zhang, Geyu Lu
Prototypes of three categories filtering bandpass power dividers are presented in this letter. Their common points are M-sections cascaded transformer structure and $M+1$ sections shorted stubs. To realize different performance, three specific structures are adopted in these categories' prototypes of power divider. Specifically, three different performances of proposed three prototypes are perfect isolation in the passband, smaller circuit size and out-of-band rejection, respectively. Three proposed prototypes are analysis by even- and odd-mode method, and the binding relationship in mathematics are deduced. Finally, three experimental circuits of corresponding prototypes are fabricated, and high consistency exist in the measured results and simulated results.
{"title":"A Synthetic Design Approach of Wideband Bandpass Power Divider","authors":"Xiaolong Wang, Nan Zhang, Geyu Lu","doi":"10.1109/ICMMT55580.2022.10023409","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023409","url":null,"abstract":"Prototypes of three categories filtering bandpass power dividers are presented in this letter. Their common points are M-sections cascaded transformer structure and $M+1$ sections shorted stubs. To realize different performance, three specific structures are adopted in these categories' prototypes of power divider. Specifically, three different performances of proposed three prototypes are perfect isolation in the passband, smaller circuit size and out-of-band rejection, respectively. Three proposed prototypes are analysis by even- and odd-mode method, and the binding relationship in mathematics are deduced. Finally, three experimental circuits of corresponding prototypes are fabricated, and high consistency exist in the measured results and simulated results.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 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":"129851036","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/ICMMT55580.2022.10023455
Xi-meng Yu, Zhen-tao Yang, Lin-jie Liu
This article introduces a BGA differential signal transmission structure based on HiTCE multilayer co-fired ceramic technology. The application frequency range is from DC to V band, which is suitable for system-in-package of millimeter wave chips. The research content includes the design and modeling of the differential signal transmission structure, the impedance matching and optimization of the transmission path, and the signal integrity simulation and analysis of the differential signal transmission structure. The transmission structure includes an upper substrate and a lower substrate made of HiTCE materials. The upper differential transmission line and the lower differential transmission line are connected by solder balls. The signal integrity is characterized by the scattering parameters tested by the vector network analyzer and the eye pattern displayed by the oscilloscope. The test and simulation have good consistency, and meet the design of processing. From $mathbf{DC}sim 60mathbf{GHz}$, the return loss of the differential transmission structure is better than 10dB, and the insertion loss is better than 1dB.
{"title":"Research on Signal Integrity of UWB BGA Differential Transmission Structure Based on HiTCE","authors":"Xi-meng Yu, Zhen-tao Yang, Lin-jie Liu","doi":"10.1109/ICMMT55580.2022.10023455","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023455","url":null,"abstract":"This article introduces a BGA differential signal transmission structure based on HiTCE multilayer co-fired ceramic technology. The application frequency range is from DC to V band, which is suitable for system-in-package of millimeter wave chips. The research content includes the design and modeling of the differential signal transmission structure, the impedance matching and optimization of the transmission path, and the signal integrity simulation and analysis of the differential signal transmission structure. The transmission structure includes an upper substrate and a lower substrate made of HiTCE materials. The upper differential transmission line and the lower differential transmission line are connected by solder balls. The signal integrity is characterized by the scattering parameters tested by the vector network analyzer and the eye pattern displayed by the oscilloscope. The test and simulation have good consistency, and meet the design of processing. From $mathbf{DC}sim 60mathbf{GHz}$, the return loss of the differential transmission structure is better than 10dB, and the insertion loss is better than 1dB.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"4 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":"128524148","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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