X. Wang, M. Ohira, and Z. Ma, A flexible two section transmission line transformer design approach for complex source and real load impedances, IEICE Electronics Express, vol. Jan. 2. 01. 7. Y. He Shanghai Univ., Z. Ma Saitama Univ., and X. Yang Shanghai Univ., A compact utral wideband bandpass filter with broad stopband based on step impedance stub loaded tri mode resonator, IEICE Electronics Express, vol. International Journal of Engineering Research and Applications IJERA is an open access online peer reviewed international journal that publishes research. The Pagoda antenna is an omnidirectional circularly polarized antenna design that I created. My main design goals were Good omnidirectional radiation pattern. Feb. 2. 01. 7. T. Toda ISASJAXA, N. Kukutsu, S. Kitazawa, S. Ano, H. Kamoda, T. Kumagai, K. Kobayashi ATR, M. Ohira Saitama Univ., and S. Shimizu OKI, Intra spacecraft wireless link and its application to spacecraft environmental tests, Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, vol. Feb. 2. 01. 7. M. No more missed important software updates UpdateStar 11 lets you stay up to date and secure with the software on your computer. Empowerment is one of those loaded buzzwords that hangs out with synergy and disruptive. When done right, empowerment can make running a business, and making that. Ohira, A. Yamashita, Z. Ma, and X. Wang, A novel eigenmode based neural network for fully automated microstrip bandpass filter design, 2. IEEE MTT S Int. Microwave Symp. IMS2. 01. 7, Honolulu, HI, June 2. A. Yamashita, M. Ohira, Z. Ma, and X. Wang, Design of microstrip bandpass filters using neural network based on eigenmodes, Proc. Fractal Antenna Systems custom designs, manufactures and licenses the worlds most compact and powerful antennas for commercial and military applications. Thailand Japan Micro. Wave TJMW2. 01. 7, Bangkok, Thailand, June 2. S. Hashimoto, M. Ohira, Z. Ma, and X. Wang, A fourth order tunable bandpass filter with constant absolute bandwidth and transmission zeros, Proc. Thailand Japan Micro. Wave TJMW2. 01. 7, Bangkok, Thailand, June 2. M. Ohira, T. Miyazaki, Z. Ma, and X. Wang, Coupling matrix based design of microstrip filtering antenna with cross coupling between antenna and resonator, Proc. Thailand Japan Micro. Wave TJMW2. 01. 7, Bangkok, Thailand, June 2. X. Wang, Z. Ma, and M. Ohira, Dual band design theory for dual transmission line transformer, IEEE Microwave and Wireless Comp. Lett., vol. 2. 7, no. Sept. 2. 01. 7. B. Ren, Z. Ma, H. Liu, M. Patch Antenna Design Hfss' title='Patch Antenna Design Hfss' />Ohira, P. Wen, X. Wang, and X. Guan, Design of a compact diplexer using dual mode microstrip and slotline resonators, 2. Asia Pacific Conf. Antennas and Propagat. APCAP2. 01. 7, Xian, China, Oct. X. Wang, N. Kimata, Z. Ma, and M. Ohira, Dual band bandpass filter type Wilkinson power divider with microstrip composite resonators, Proc. Asia Pacific Microwave Conf. APMC2. 01. 7, Kuala Lumpur, Malaysia, Nov. D. Tetuda, C. P. Chen, C. Xie, S. Kikawa, Z. Zhang, T. Anada Kanagawa Univ., and Z. Ma Saitama Univ., Synthesis scheme of bandpass to all stop switchable wideband filters based on coupled lines, Proc. Asia Pacific Microwave Conf. APMC2. 01. 7, Kuala Lumpur, Malaysia, Nov. P. Wen, Z. Ma, H. Liu, M. Ohira, B. Ren, and X. Wang, Compact dual band bandpass filter using stub loaded stepped impedance resonators with mixed electric and magnetic couplings, Proc. Asia Pacific Microwave Conf. APMC2. 01. 7, Kuala Lumpur, Malaysia, Nov. C, vol. J1. 00 C, no. Dec. 2. 01. 7., vol. MW2. 01. 6 1. 80, pp. Jan. 2. 01. 7., vol. MW2. 01. 6 1. 81, pp. Jan. 2. 01. 7., BPF, 2. Mar. 2. 01. 7., Cul de SacBPF, vol. MW2. 01. 7 6, pp. Apr. 2. 01. 7., Q, vol. MW2. 01. 7 1. 7, pp. May 2. 01. 7., vol. AP2. 01. 7 9. 3, pp. Sep. 2. 01. 7., 　, vol. MW2. 01. 7 7. 9, pp. Sep. 2. 01. 7., BPF, vol. MW2. 01. 7 8. 0, pp. Sep. 2. 01. 7., 4, vol. MW2. 01. 7 8. 1, pp. Sep. 2. 01. 7., vol. MW2. 01. 7 1. 24, pp. Nov. 2. 01. 7., 4, 2. C 2 3. 6, p. 4. Cul de SacBPF, 2. C 2 3. 8, p. 5. BPF, 2. C 2 3. 9, p. 5. C 2 4. C 2 9. 7, p. 1. BPF, 2. C 2 5. 2, p. 6. C 2 5. CS 2 4, p. S 1. Cul de Sac, NEWS LETTER, vol. Jan. 2. 01. 7., NEWS LETTER, vol. Jan. 2. 01. 7., vol. Fighting Games For Pc Windows Xp. J9. 9 C, no. 2, pp. Feb. 2. 01. 6. M. Ohira, T. Kato, and Z. Ma, Novel microstrip realization and straightforward design of fully canonical Cul de Sac coupling bandpass filters, 2. IEEE MTT S Int. Microwave Symp., San Francisco, CA, May 2. K. Sato, M. Ohira, and Z. Ma, Design of multistage microstrip filtering antenna by using parameter extraction method, Proc. Thailand Japan Micro. Wave TJMW2. 01. 6, Bangkok, Thailand, June 2. R. Tomita, M. Ohira, and Z. Ma, A simple and fast tuning technique for direct coupled resonator filter design, Proc. Thailand Japan Micro. Wave TJMW2. 01. 6, Bangkok, Thailand, June 2. TJMW2. 01. 6 Young Researcher Encouragement Award R. TomitaM. Ohira and Z. Ma, Physical realization and systematic design of microwave bandpass filters with generalized Chebyshev function Response, Proc. Adobe Photoshop Cs4 Portable For Windows 7 Free Download. Thailand Japan Micro. Wave TJMW2. 01. 6, Bangkok, Thailand, June 2. X. Wang, M. Ohira, and Z. Ma, Coupled microstrip line Wilkinson power divider with open stubs for compensation, Electron. Lett., vol. 5. 2, no. July 2. 01. 6. M. Ohira, K. Yamanaka, and Z. Ma, A new design formula of coupling coefficient between antenna and resonator for efficient design of filtering antenna, IEICE Trans. Electron., vol. E9. C, no. 7, pp. 7. 44 7. July 2. 01. 6. K. Dong, J. Mo, Y. He Shanghai Univ., Z. Ma Saitama Univ., and X. Yang Shanghai Univ., A compact millimeter wave dual band bandpass filter using substrate integrated waveguide SIW dual mode cavities, IEICE Trans. Electron., vol. E9. C, no. 7, pp. 7. 61 7. July 2. 01. 6. X. Wang, M. Ohira, and Z. Ma, Accurate Schiffman type section design approach for microstrip line Wilkinson power divider, IEICE Electronics Express, July 2. M. Ohira, T. Kato, and Z. Ma, A fully canonical bandpass filter design using microstrip transversal resonator array configuration, IEICE Trans. Electron., vol. E9. C, no. 1. 0, pp. 1. Oct. 2. 01. 6. Z. Ma, M. Ai, M. Ohira Saitama Univ., C. Chen, and T. Anada Kanagawa Univ., A compact quasi millimeter wave microstrip wideband bandpass filter, 2. IEEE Int. Conf. on Ubiquitous Wireless Broadband, Najing, China, Oct. C. Chen, T. Anada Kanagawa Univ., S. Takeda Antenna Giken, and Z. Ma Saitama Univ., Proposal and theoretical design of THz bandpass filters using metallic photonic crystal resonators, Proc. Europ. Microw. Conf. Eu. MC 2. 01. 6, Oct. X. Wang, M. Ohira, Z. Ma Saitama Univ., I. Sakagami Univ. of Toyama, A. Mase Kyushu Univ., and M. Yoshikawa Univ. of Tsukuba, CapacitiveInductive compensation factor in coupled lines Wilkinson power divider design, Microw. Opt. Tech. Lett., vol. PADT, Inc. The Blog We Make Innovation Work. ANSYS HFSS features an integrated history based modeler. This means that an objects final shape is dependent on each and every operation performed on that object. History based modelers are a perfect choice for analysis since they naturally support parameterization for design exploration and optimization. However, editing imported solid 3. D Mechanical CAD or MCAD models can sometimes be challenging with a history based modeler since there are no imported parameters, the order of operation is important, and operational dependencies can sometimes lead to logic errors. Conversely, direct modelers are not bound by previous operations which can offer more freedom to edit geometry in any order without historic logic errors. This makes direct modelers a popular choice for CAD software but, since dependencies are not maintained, they are not typically the natural choice for parametric analysis. If only there was a way to leverage the best of both worlds Well, with ANSYS, there is a way. As discussed in a previous blog post, since the release of ANSYS 1. ANSYS Space. Claim Direct Modeler SCDM and the MCAD translator used to import geometry from third party CAD tools are now packaged together. The post also covered a few simple procedures to import and prepare a solid model for electromagnetic analysis. However, this blog post will demonstrate how to define parameters in SCDM, directly link the model in SCDM to HFSS, and drive a parametric sweep from HFSS. This link unites the geometric flexibility of a direct modeler to the parametric flexibility of a history based modeler. You can download a copy of this model here to follow along. If you need access to SCDM, you can contact us at infopadtinc. Its also worth noting that the processes discussed throughout this article work the same for HFSS IE, Q3. D, and Maxwell designs as well. To begin, open ANSYS Space. Claim and select File Open to import the step file. Split the patch antenna and reference plane from the dielectric. Click here for steps to splitting geometry. Notice the objects can be renamed and colors can be changed under the Display tab. This slideshow requires Java. Script. 1 Click and hold the center mouse button to rotate the model, zoom into the microstrip feed using the mouse scroll, then select the side of the trace. Rotate to the other side of the microstrip feed, hold the Ctrl key, and select the other side of the trace. Note the distance between the faces is shown as 3mm in the Status Bar at the bottom of the screen, which is the initial trace width. Select Design Edit Pull and select No merge under Options Pull. Click the yellow arrow in the model, and drag the side of the trace. Notice how both faces move in or out to change the trace width. After releasing the mouse, a P will appear next to the measurement box. Click this P to create a parameter. Select the Groups panel under the Structure tree. Change Group. 1 to trace. Width and reset the Ruler dimension to 0mm. Then, save the project as UWBPatchAntennaPCB. SCDM open. This slideshow requires Java. Script. 1 Open ANSYS Electronics Desktop AEDT, insert a new HFSS Design, and select the menu item Modeler Space. Claim Link Connect to Active Session Notice that there is an option to browse and open any SCDM project if the session is not currently active or open. Select the active UWBPatchAntennaPCB session and click Connect. The geometry from SCDM is automatically imported into HFSS. This slideshow requires Java. Script. 1 Double click the Space. Claim. 1 model in the HFSS modeler tree and select the Parameters tab in the pop up dialogue box. Notice the SCDM parameter can now be controlled within HFSS. Change the Value of trace. Width to SCDMtrace. Width to create a local variable and set SCDMtrace. The Prestige Flac there. Width equal to 1mm. Then click OK. Notice a lightning bolt over the Space. Claim. 1 model to indicate changes have been made. Right click Space. Claim. 1 in the modeler tree and select Send Parameters and Generate. Notice how the HFSS geometry reflects the changes. Notice how the SCDM also reflects the changes. In practice, it is generally recommended to browse to unopen SCDM projects rather than connecting to an active session to avoid accidentally editing the same geometry in two places. This slideshow requires Java. Script. At this point, not only can the geometry in SCDM be controlled by variables in HFSS, but a parametric analysis can now be performed on geometry within a direct modeler. The best of both worlds Use the typical steps within HFSS to setup a parametric sweep or optimization. When performing a parametric analysis, the geometry will automatically update the link between HFSS and SCDM, so step 2 above does not need to be performed manually. Be sure to follow the typical HFSS setup procedures such as assigning materials, defining ports and boundaries, and creating a solution setup before solving. Here are some additional pro tips Create local variables in HFSS that can be used for both local and linked geometry. For example, create a variable in HFSS for trace. Width 3mm which was the previously noted width. Define SCDMtrace. Width trace. Width 3mm2. Now the port width can scale with the trace width. This slideshow requires Java. Script. Link to multiple SCDM projects. Either move and rotate parts as needed or create a separate coordinate system for each component. For example, link an SMA end connector to the same HFSS project to analyze both components. Notice that each component has variables and the substrate thickness changes both SCDM projects. This slideshow requires Java. Script. Design other objects in the native HFSS history based modeler that are dependent on the SCDM design variables. For example, the void in an enclosure could be a function of SCDMdielectric. Height. Notice that the enclosure void is dependent on the SCDM dielectric height. This slideshow requires Java.