Improved microstrip hairpin-line bandpass filters for spurious response suppression

Lotfi-Neyestanak, Abbas Ali; Lalbakhsh, Ali

doi:10.1049/el.2012.0967

Cited by 34 publications

(35 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A filter consisting of MMR with stepped impedance configuration and a parasitic coupled line, suffered from the same problem [6]. In [13]a new fractal geometry was proposed and employed in a hairpin bandpass filter to achieve good skirt characteristics. A cascade connection of defected microstrip structures (DMS) was used to realize a wide bandpass filter in [14].…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Design of a Compact Multi mode UWB Band Pass Filter with flexible notch band employing Interdigital Coupled Lines

Sabaghi

Karimi

Lalbakhsh

et al. 2015

Optik - International Journal for Light and Electron Optics

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Design of a Compact Multi mode UWB Band Pass Filter with flexible notch band employing Interdigital Coupled Lines

Sabaghi

Karimi

Lalbakhsh

et al. 2015

Optik - International Journal for Light and Electron Optics

View full text Add to dashboard Cite

“…Therefore, a miniaturization technique should be adopted to reduce the proposed RFID tag size. There are various fractal geometries, effectively used for this purpose [14][15][16]. Such techniques, however, need more elaboration for spiral resonators due to narrow gaps in the structure.…”

Section: Design Of the Proposed Rfid Tagmentioning

confidence: 99%

RFID Tag Design Using Spiral Resonators and Defected Ground Structure

et al. 2017

Self Cite

View full text Add to dashboard Cite

“…The presented filter in [11], which employed a resonator with slotted ground plane, suffered from the same problem. In terms of investigating the operating mechanisms of microstrip filters, several theoretically-based approaches have been explained in some recently published papers [12]- [14].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Novel Approach to Design of Ultra-wide Stopband Microstrip Low-Pass Filter Using Modified U-Shaped Resonator

Karimi¹,

Lalbakhsh²,

Dehghani³

et al. 2015

ETRI J

View full text Add to dashboard Cite

A novel microstrip low‐pass filter is presented to achieve an ultra‐wide stopband with 11 harmonic suppression and very sharp skirt characteristics. The filter is composed of a modified U‐shaped resonator (which creates two fully adjustable transmission zeroes), a T‐shaped resonator (which determines a cut‐off frequency), and four radial stubs (which provide a wider stopband). The operating mechanism of the filter is investigated based on a proposed equivalent‐circuit model, and the role of each section of the proposed filter in creating null points is theoretically discussed in detail. The presented filter with 3 dB cut‐off frequency (fc=2.35 GHz) has been fabricated and measured. Results show that a relative stopband bandwidth of 164% (referred to as a 22 dB suppression) is obtained while achieving a high figure‐of‐merit of 15,221.

show abstract

Improved microstrip hairpin-line bandpass filters for spurious response suppression

Cited by 34 publications

References 5 publications

WITHDRAWN: Design of a Compact Multi mode UWB Band Pass Filter with flexible notch band employing Interdigital Coupled Lines

WITHDRAWN: Design of a Compact Multi mode UWB Band Pass Filter with flexible notch band employing Interdigital Coupled Lines

RFID Tag Design Using Spiral Resonators and Defected Ground Structure

Analysis of Novel Approach to Design of Ultra-wide Stopband Microstrip Low-Pass Filter Using Modified U-Shaped Resonator

Contact Info

Product

Resources

About