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Content Provider | IET Digital Library |
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Author | Zobilah, Abdullah M. Zakaria, Zahriladha Shairi, Noor Azwan |
Abstract | A selectable multiband isolation of single pole double throw (SPDT) switch with switchable transmission line stub resonators for applications of WiMAX and LTE in 2.3 and 3.5 GHz bands is presented. Two SPDT switches are presented. (Design 2) either allows selecting only one band while unselecting the other or selecting both of them. However, (Design 1) does not allow so. The transmission line stub resonator used in this design is an open stub resonator with quarter wave of the electrical length. By using a simple mathematical model, the theory of the transmission line stub resonator was discussed where it can be cascaded and resonated at centre frequencies of 2.3 and 3.5 GHz. Moreover, the cascaded transmission line stub resonators can be reconfigured between all-pass and band-stop responses using discrete PIN diodes. The key advantage of the proposed SPDT with switchable transmission line stub resonators is a multiband high isolation with a minimum number of PIN diodes. Therefore, the simulated and measured results showed the followings: <3 dB of insertion loss, >10 dB of return loss and >30 dB of multiband isolation in 2.3 and 3.5 GHz bands. |
Starting Page | 844 |
Ending Page | 851 |
Page Count | 8 |
ISSN | 17518725 |
Volume Number | 11 |
e-ISSN | 17518733 |
Issue Number | Issue 6, May (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/6 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0868 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2016-12-16 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | All-pass Response Band-stop Response Cascaded Transmission Line Stub Resonator Discrete PIN Diodes Electrical Length Frequency 2.3 GHz Frequency 3.5 GHz Junction And Barrier Diode Long Term Evolution LTE Application Microwave IC Microwave Resonator Microwave Switches Mobile Radio System Open Stub Resonator P-i-n Diode Relay And Switches Selectable Multiband Isolation Single Pole Double Throw Switch SPDT Switch Switchable Transmission Line Stub Resonator UHF Resonator Waveguide And Microwave Transmission Line Component WiMax WiMAX Application |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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