Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon free Wide-stopband Wilkinson power divider with bandpass response

© The Institution of Engineering and Technology
Received 01/10/2013, Published

A wide-stopband Wilkinson power divider with bandpass response and good isolation is presented. A 3-terminal, 2-pole bandpass filter and two 3-pole lowpass filters are used to replace the two quarter-wavelength transformer in a conventional Wilkinson power. The divider consists of two shorted-circuited half-wavelength stepped-impedance resonators and two 3-pole microstrip stepped-impedance lowpass filters. Thus, the divider achieves not only a bandpass response but also a very wide stopband. For the upper stopband performance, the rejection level is >10 dB up to 22.2 times the centre frequency.

Inspec keywords: band-pass filters; power dividers; low-pass filters

Other keywords: bandpass response; 3-terminal filter; shorted-circuited half-wavelength stepped-impedance resonators; 3-pole microstrip stepped-impedance lowpass filters; quarter-wavelength transformer; wide-stopband Wilkinson power divider; 2-pole bandpass filter

Subjects: Waveguide and microwave transmission line components; Filters and other networks

References

    1. 1)
      • 5. Shao, J.-Y., Huang, S.-C., Pang, Y.-H.: ‘Wilkinson power divider incorporating quasi-elliptic filters for improved out-of-band rejection’, Electron. Lett., 2011, 47, (23), pp. 1288–1289 (doi: 10.1049/el.2011.2766).
    2. 2)
      • 6. Cheong, P., Lai, K.-I., Tam, K.-W.: ‘Compact Wilkinson power divider with simultaneous bandpass response and harmonic suppression’. IEEE MTT-S Int. Microwave Symp. Digest, Anaheim, CA, USA, May 2010, pp. 1588–1591.
    3. 3)
      • 7. Hong, J.-S.: ‘Microstrip filters for RF/microwave applications’ (Wiley, New York, USA, 2011, 2nd edn.).
    4. 4)
      • 2. Deng, P.-H., Dai, L.-C.: ‘Unequal Wilkinson power dividers with favorable selectivity and high-isolation using coupled-line filter transformers’, IEEE Trans. Microw. Theory Tech., 2012, 60, (6), pp. 1520–1529 (doi: 10.1109/TMTT.2012.2189409).
    5. 5)
      • 4. Singh, P.K., Basu, S., Wang, Y.-H.: ‘Coupled line power divider with compact size and bandpass response’, Electron. Lett., 2009, 45, (17), pp. 892–894 (doi: 10.1049/el.2009.1488).
    6. 6)
      • 3. Wong, S.W., Zhu, L.: ‘Ultra-wideband power divider with good in-band slitting and isolation performance’, IEEE Microw. Wirel. Compon. Lett., 2008, 18, (8), pp. 518–520 (doi: 10.1109/LMWC.2008.2001009).
    7. 7)
      • 1. Wilkinson, E.: ‘An N-way hybrid power divider’, IRE Trans. Microw. Theory Tech., 1960, 8, (1), pp. 116–118 (doi: 10.1109/TMTT.1960.1124668).
    8. 8)
      • 8. Chen, C.-F., Huang, T.-Y., Wu, R.-B.: ‘Design of microstrip bandpass filters with multiorder spurious-mode suppression’, IEEE Trans. Microw. Theory Tech., 2005, 53, (12), pp. 3788–3793 (doi: 10.1109/TMTT.2005.859869).
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2013.3264
Loading

Related content

content/journals/10.1049/el.2013.3264
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address