Pub Date : 2009-03-02DOI: 10.1109/IWAT.2009.4906912
Jeongpyo Kim, Jaehoon Choi
We propose a two-element diversity-antenna array using epsilon negative zeroth order resonator (ENG-ZOR) at the long-term evolution (LTE) and Wibro (WiMax in Korea) bands for the multiple-input multiple-output (MIMO) application. Each element is designed by utilizing an ENG ZOR unit cell with size of 10 mm × 6 mm × 6 mm. The lower resonant frequency is fixed by the zeroth order resonance of the ENG ZOR and the higher is selected by the radiator utilizing the first order resonance of the ENG ZOR. An isolator is added between the two elements in order to enhance the isolation characteristic at higher band of the designed MIMO antenna. The MIMO antenna is fabricated on the top side of the ground plane with size of 48 mm × 108 mm × 0.4 mm. The fabricated antenna has the isolation of about 20 dB at the lower band and higher than 13 dB at the higher band.
我们提出了一种使用epsilon负零阶谐振器(ENG-ZOR)的双元分集天线阵列，用于长期演进(LTE)和Wibro(韩国的WiMax)频段，用于多输入多输出(MIMO)应用。每个元件的设计都采用了尺寸为10mm × 6mm × 6mm的英卓单晶片。较低的谐振频率由ENG ZOR的零阶谐振固定，较高的谐振频率由散热器利用ENG ZOR的一阶谐振选择。为了提高MIMO天线在高频段的隔离特性，在两个元件之间增加了隔离器。MIMO天线制作在接地面的顶部，尺寸为48 mm × 108 mm × 0.4 mm。制作的天线在低频段隔离度约为20 dB，在高频段隔离度高于13 dB。
{"title":"Dual band MIMO antenna using ENG zeroth order resonator for 4G system","authors":"Jeongpyo Kim, Jaehoon Choi","doi":"10.1109/IWAT.2009.4906912","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906912","url":null,"abstract":"We propose a two-element diversity-antenna array using epsilon negative zeroth order resonator (ENG-ZOR) at the long-term evolution (LTE) and Wibro (WiMax in Korea) bands for the multiple-input multiple-output (MIMO) application. Each element is designed by utilizing an ENG ZOR unit cell with size of 10 mm × 6 mm × 6 mm. The lower resonant frequency is fixed by the zeroth order resonance of the ENG ZOR and the higher is selected by the radiator utilizing the first order resonance of the ENG ZOR. An isolator is added between the two elements in order to enhance the isolation characteristic at higher band of the designed MIMO antenna. The MIMO antenna is fabricated on the top side of the ground plane with size of 48 mm × 108 mm × 0.4 mm. The fabricated antenna has the isolation of about 20 dB at the lower band and higher than 13 dB at the higher band.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130903522","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906961
C. Holloway, R. Ziolkowski, Peng Jin, Chia-Ching Lin, J. Ladbury
The paper discusses analysis and measurements of electrically small antennas. The antennas discussed here are based on antennas designed from metamaterial inspired concepts. An electromagnetic reverberation chamber is used for the tests of the antennas. A reverberation chamber is basically a shielded room (metallic wall) with an arbitrarily shaped metallic rotating paddle and is an ideal environment for measuring the total radiated power of an antenna. Simulations and measurements of various antennas will be presented.
{"title":"Measurements of metamaterial-inspired, electrically small antenna systems","authors":"C. Holloway, R. Ziolkowski, Peng Jin, Chia-Ching Lin, J. Ladbury","doi":"10.1109/IWAT.2009.4906961","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906961","url":null,"abstract":"The paper discusses analysis and measurements of electrically small antennas. The antennas discussed here are based on antennas designed from metamaterial inspired concepts. An electromagnetic reverberation chamber is used for the tests of the antennas. A reverberation chamber is basically a shielded room (metallic wall) with an arbitrarily shaped metallic rotating paddle and is an ideal environment for measuring the total radiated power of an antenna. Simulations and measurements of various antennas will be presented.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122556224","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906892
Yu-Jen Chi, C. Chiu
This letter presents a design of multiband inverted-F antenna which integrated GSM, 3.5G, WLAN and WiMAX into a single one. The proposed antenna comprised a dual-band main inverted-F resonator and two parasitic elements. This compact antenna operates in GSM900, DCS, PCS, UMTS, Bluetooth/WLAN, WiMAX, HiperLAN/2 and IEEE 802.11a, with return loss better than −6 dB. The wide bandwidth was achieved by just using the capacitive-coupled parasitic element. Simulation was performed here by HFSS to optimally design the antenna and the practical structure was also fabricated to verify the simulation results. The measured antenna parameters as well as radiation efficiency are presented to validate the proposed antenna.
{"title":"An internal multiband inverted-F antenna for mobile devices","authors":"Yu-Jen Chi, C. Chiu","doi":"10.1109/IWAT.2009.4906892","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906892","url":null,"abstract":"This letter presents a design of multiband inverted-F antenna which integrated GSM, 3.5G, WLAN and WiMAX into a single one. The proposed antenna comprised a dual-band main inverted-F resonator and two parasitic elements. This compact antenna operates in GSM900, DCS, PCS, UMTS, Bluetooth/WLAN, WiMAX, HiperLAN/2 and IEEE 802.11a, with return loss better than −6 dB. The wide bandwidth was achieved by just using the capacitive-coupled parasitic element. Simulation was performed here by HFSS to optimally design the antenna and the practical structure was also fabricated to verify the simulation results. The measured antenna parameters as well as radiation efficiency are presented to validate the proposed antenna.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122330516","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906900
Kai-fong Lee, Shing-lung Steven Yang, A. Kishk
A wide band patch antenna fed by an L-probe can be designed for dual- and multi-band applications by cutting U-slots on the patch. The half wavelength long U-slot resonates and introduces a band-notch. Multiple band-notches could be introduced by cutting several U-slots on the patch. Simulation and measurement results are presented to illustrate this design. Stable broadside radiation patterns are maintained across the bands.
{"title":"U-slot patch antennas for dual-band or multi-band applications","authors":"Kai-fong Lee, Shing-lung Steven Yang, A. Kishk","doi":"10.1109/IWAT.2009.4906900","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906900","url":null,"abstract":"A wide band patch antenna fed by an L-probe can be designed for dual- and multi-band applications by cutting U-slots on the patch. The half wavelength long U-slot resonates and introduces a band-notch. Multiple band-notches could be introduced by cutting several U-slots on the patch. Simulation and measurement results are presented to illustrate this design. Stable broadside radiation patterns are maintained across the bands.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120983214","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906975
N. Behdad
In this paper, we present some of our recent results in the area of designing single- and dual-polarized miniaturized slot antennas. Examples of miniaturized slot antennas that are 15 to 20 times smaller than traditional dipole or patch antennas are presented and discussed. In particular two examples of miniaturized on-chip slot antennas, operating at 5.0 GHz and 9.0 GHz frequency bands, integrated with radio frequency integrated circuits on a Complementary Metal Oxide Semiconductor (CMOS) chips are presented and discussed. Finally, the design and operational principles of a dual-polarized electrically small slot antenna is presented.
{"title":"Single- and dual-polarized miniaturized slot antennas and their applications in on-chip integrated radios","authors":"N. Behdad","doi":"10.1109/IWAT.2009.4906975","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906975","url":null,"abstract":"In this paper, we present some of our recent results in the area of designing single- and dual-polarized miniaturized slot antennas. Examples of miniaturized slot antennas that are 15 to 20 times smaller than traditional dipole or patch antennas are presented and discussed. In particular two examples of miniaturized on-chip slot antennas, operating at 5.0 GHz and 9.0 GHz frequency bands, integrated with radio frequency integrated circuits on a Complementary Metal Oxide Semiconductor (CMOS) chips are presented and discussed. Finally, the design and operational principles of a dual-polarized electrically small slot antenna is presented.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124985830","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906909
Hsien-Chiao Teng, Yen-Ting Yang, S. Cherng, Yu-Jung Huang, S. Fu
The electromagnetic field can be radiated when a signal is transmitted along the radiators on an antenna; meanwhile, evanescent coupling occurs in parasitic elements. This report is demonstrated to characterize grating level displacements of the components and depicts the criterion of evanescent coupling for the design of the microstrip patch antenna array in future to amplify the feed network.
{"title":"Basic study of microwave evanescent coupling between parasitic elements on microstrip patch antenna array","authors":"Hsien-Chiao Teng, Yen-Ting Yang, S. Cherng, Yu-Jung Huang, S. Fu","doi":"10.1109/IWAT.2009.4906909","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906909","url":null,"abstract":"The electromagnetic field can be radiated when a signal is transmitted along the radiators on an antenna; meanwhile, evanescent coupling occurs in parasitic elements. This report is demonstrated to characterize grating level displacements of the components and depicts the criterion of evanescent coupling for the design of the microstrip patch antenna array in future to amplify the feed network.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121578677","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906869
Jie Huang, Jin-Wei Wu, Y. Chiou, C. Jou
A 24 / 60GHz dual-band millimeter-wave on-chip antenna fabricated in TSMC 0.13-μm CMOS process is presented here. We design the feeding network by using the coplanar waveguide (CPW) structure. For the dual-band design, there are two major current paths to radiate. To avoid the harmonic frequency band of the low frequency-band, we add two strips to couple the harmonic frequency of the low frequency-band. Besides, the two strips let the higher frequency-band performance better. At this work, the simulator is based 3-D full-wave EM solver, Ansoft HFSS. The on-chip antenna size is 0.76 X 1.045 mm2. The bandwidth of the lower band and higher is about 180MHz and 700MHz, respectively. The simulated gain is about −9dB for 24GHz and about 1dB for 60GHz
{"title":"A 24/60GHz dual-band millimeter-wave on-chip monopole antenna fabricated with a 0.13-μm CMOS technology","authors":"Jie Huang, Jin-Wei Wu, Y. Chiou, C. Jou","doi":"10.1109/IWAT.2009.4906869","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906869","url":null,"abstract":"A 24 / 60GHz dual-band millimeter-wave on-chip antenna fabricated in TSMC 0.13-μm CMOS process is presented here. We design the feeding network by using the coplanar waveguide (CPW) structure. For the dual-band design, there are two major current paths to radiate. To avoid the harmonic frequency band of the low frequency-band, we add two strips to couple the harmonic frequency of the low frequency-band. Besides, the two strips let the higher frequency-band performance better. At this work, the simulator is based 3-D full-wave EM solver, Ansoft HFSS. The on-chip antenna size is 0.76 X 1.045 mm2. The bandwidth of the lower band and higher is about 180MHz and 700MHz, respectively. The simulated gain is about −9dB for 24GHz and about 1dB for 60GHz","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115197001","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906967
Zhi Ning Chen, T. See
The diversity performance is desired in the antenna design for UWB systems, especially in indoor application scenarios. To achieve the high isolation between the elements within a limited space, polarization and pattern diversity can be employed in the antenna design. Besides the conventional average envelope correlation coefficients, the 2- and 3-D correlation patterns are able to provide more precise information which is helpful to the optimization of the antenna configurations.
{"title":"Diversity and its applications in ultra-wideband antennas","authors":"Zhi Ning Chen, T. See","doi":"10.1109/IWAT.2009.4906967","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906967","url":null,"abstract":"The diversity performance is desired in the antenna design for UWB systems, especially in indoor application scenarios. To achieve the high isolation between the elements within a limited space, polarization and pattern diversity can be employed in the antenna design. Besides the conventional average envelope correlation coefficients, the 2- and 3-D correlation patterns are able to provide more precise information which is helpful to the optimization of the antenna configurations.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114591280","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906901
Zhang Jianwu, Zhou Yangyang, G. Feng
In this paper, a novel folded antenna operating at the frequency band of a TD-SCDMA system is presented. With the technology of spatial bending and parasitic stub loading, the dual frequency operation is realized. At the same time, the radiation principle of PIFA with the parasitic stub is theoretically studied. With the size of 38×6×7 mm3, the antenna covers the frequency bands of 1880–1920MHz and 2010–2025MHz of TD-SCDMA. It embodies the demands of miniaturization, simple structure and dual-band operation of terminal antennas, and can be used at terminals of TD-SCDMA systems.
{"title":"A novel folded inverted-F antenna with parasitic stub for TD-SCDMA systems","authors":"Zhang Jianwu, Zhou Yangyang, G. Feng","doi":"10.1109/IWAT.2009.4906901","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906901","url":null,"abstract":"In this paper, a novel folded antenna operating at the frequency band of a TD-SCDMA system is presented. With the technology of spatial bending and parasitic stub loading, the dual frequency operation is realized. At the same time, the radiation principle of PIFA with the parasitic stub is theoretically studied. With the size of 38×6×7 mm3, the antenna covers the frequency bands of 1880–1920MHz and 2010–2025MHz of TD-SCDMA. It embodies the demands of miniaturization, simple structure and dual-band operation of terminal antennas, and can be used at terminals of TD-SCDMA systems.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117072907","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 : 2009-03-02DOI: 10.1109/IWAT.2009.4906877
Yu-Jen Chi, C. Chiu, S. Deng
A novel multiband antenna which can be integrated into a laptop computer is reported in this conference. The antenna evolved from a dual-band inverted-F antenna vertically mounted on a ground plane of LCD panel. By adding four parasitic resonators which are shorted quarter-wavelength elements, the antenna can achieve wideband performance to cover GSM850/GSM900/DCS/PCS/UMTS and 802.11a/b/g. Simulation was performed here by HFSS to optimally design the antenna and then practical structure was also fabricated to verify the simulation results. The measured antenna parameters as well as radiation efficiency are presented to validate the proposed antenna.
{"title":"An internal multiband inverted-F antenna for laptop applications","authors":"Yu-Jen Chi, C. Chiu, S. Deng","doi":"10.1109/IWAT.2009.4906877","DOIUrl":"https://doi.org/10.1109/IWAT.2009.4906877","url":null,"abstract":"A novel multiband antenna which can be integrated into a laptop computer is reported in this conference. The antenna evolved from a dual-band inverted-F antenna vertically mounted on a ground plane of LCD panel. By adding four parasitic resonators which are shorted quarter-wavelength elements, the antenna can achieve wideband performance to cover GSM850/GSM900/DCS/PCS/UMTS and 802.11a/b/g. Simulation was performed here by HFSS to optimally design the antenna and then practical structure was also fabricated to verify the simulation results. The measured antenna parameters as well as radiation efficiency are presented to validate the proposed antenna.","PeriodicalId":166472,"journal":{"name":"2009 IEEE International Workshop on Antenna Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117151980","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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