A Compact V-Band Bandpass Filter in IPD Technology

Hsiao, Ching Hung; Hsu, Shawn S. H.; Chang, Der–Chen

doi:10.1109/lmwc.2011.2165534

Cited by 31 publications

(10 citation statements)

References 12 publications

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“…The proposed WBBS filter is presented on the IPD platform based on transmission‐line concept of impedance ( Z ) 50 Ω, folded meandered‐line and air‐bridge structure . The design was fabricated on the GaAs substrate containing the two metal layers with the Au as a top conductive layer.…”

Section: Design and Theoretical Analysismentioning

confidence: 99%

Miniaturized wideband bandstop filter using an air‐bridge capacitor via gallium‐arsenide based integrated passive device technology

Dhakal

2016

Micro & Optical Tech Letters

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the presence of the human sitting in his car. We locate the human models inside a car model as shown in Figure 13, and position it 25 cm from the left and 35 cm from the top of the car model. The SAR value within the human body when it exists in a car is listed in Table 4.This, in turn, leads us to conclude that the EM environment of the car has very little effect on the estimated SAR values. CONCLUSIONA new compact planar antenna design with the handset modeling that supports all of the operating mobile services, ISM applications, and wireless communication services is introduced. The use of the EBG structure miniaturizes the antenna size, widens the bands, and reduces the SAR values within the human body.The SAR values of the antenna satisfy the standard safety guidelines in free space, talking position, browsing mode, and when the human model in the car. The effect of the human body on the antenna performance was also taken into consideration. The antenna is tested in the recommended CTIA test position where good performances are noticed in the recommended four test cases. Thus, one can conclude that the antenna passes most of the possible tests that could face any mobile hand set antenna and hence it is considered suitable for commercial use. (2010) ABSTRACT: This letter reports a new implementation of miniaturized wideband bandstop (WBBS) filter using a gallium-arsenide (GaAs)-based integrated passive device technology (IPD). The implementation of an air-bridge capacitor explores the possibility of frequency selectivity from

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Section: Design and Theoretical Analysismentioning

confidence: 99%

Miniaturized wideband bandstop filter using an air‐bridge capacitor via gallium‐arsenide based integrated passive device technology

Dhakal

2016

Micro & Optical Tech Letters

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“…Franc et al [3] proposed two 60 GHz ﬁlters based on dual‐behaviour resonators realised with shielded coplanar waveguide transmission lines, and implemented them by using a complementary metal–oxide–semiconductor technology. A miniaturised open‐loop resonator ﬁlter in V‐band was presented and implemented using an integrated passive device technology with a low‐loss glass substrate and thick metal layers [4]. Though these technologies have been successfully applied to implement 60 GHz filters, innovative solutions are required to reduce fabrication complexity and cost by using more mature fabrication technologies.…”

Section: Introductionmentioning

confidence: 99%

Compact 60 GHz low‐temperature cofired ceramic filter with quasi‐elliptic bandpass response

Wang

Chin

Che

et al. 2016

IET Microwaves, Antennas & Propagation

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This study presents a 60 GHz quasi-elliptic bandpass filter with a compact and planar structure. The proposed filter was constructed by stacking substrate integrated waveguide (SIW) cavities on the central transverse plane of a shielding SIW cavity. Jerusalem cross (JC) apertures and circular apertures were etched on the metal layers of the stacked SIW cavities to enable dual-mode operation and energy coupling. In the dual-mode cavities, the TM 110 cavity mode and JC aperture mode can be excited simultaneously. Cross-mutual couplings exist among the resonant modes, resulting in two finite transmission zeros with each at either side of the passband. Multilayer low-temperature cofired ceramic technology was adopted to manufacture the experimental filter. The measured centre frequency was 60 GHz at a fractional bandwidth of 4.5% with two finite transmission zeros located at 53.7 and 65 GHz, thereby achieving highfrequency selectivity.

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“…One of the most powerful device fabrication methods, photolithography, is widely used for miniaturized microwave devices composed of metallic lines of only a few microns wide. However, photolithography is a rather complicated process, even for creating a few samples with simple structural designs [1,2].…”

Section: Introductionmentioning

confidence: 99%

Screen‐Printed Flexible Bandstop Filter on Polyethylene Terephthalate Substrate Based on Ag Nanoparticles

Dhakal

Jung

Park

et al. 2015

Journal of Nanomaterials

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We present a low-power, cost-effective, highly reproducible, and disposable bandstop filter by employing high-throughput screenprinting technology. We apply large-scale printing strategies using silver-nanoparticle-based ink for the metallization of conductive wires to fabricate a bandstop filter on a polyethylene terephthalate (PET) substrate. The filter exhibits an attenuation pole at 4.35 GHz with excellent in-and-out band characteristics. These characteristics reflect a rejection depth that is better than −25 dB with a return loss of −0.75 dB at the normal orientation of the PET substrate. In addition, the filter characteristics are observed at various bending angles (0 ∘ , 10 ∘ , and 20 ∘ ) of the PET substrate with an excellent relative standard deviation of less than 0.5%. These results confirm the accuracy, reproducibility, and independence of the resonance frequency. This screen-printing technology for welldefined nanostructures is more favorable than other complex photolithographic processes because it overcomes signal losses due to uneven surface distributions and thereby reveals a homogeneous distribution. Moreover, the proposed methodology enables incremental steps in the process of producing highly flexible and cost-effective printed-electronic radio devices.

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A Compact V-Band Bandpass Filter in IPD Technology

Cited by 31 publications

References 12 publications

Miniaturized wideband bandstop filter using an air‐bridge capacitor via gallium‐arsenide based integrated passive device technology

Miniaturized wideband bandstop filter using an air‐bridge capacitor via gallium‐arsenide based integrated passive device technology

Compact 60 GHz low‐temperature cofired ceramic filter with quasi‐elliptic bandpass response

Screen‐Printed Flexible Bandstop Filter on Polyethylene Terephthalate Substrate Based on Ag Nanoparticles

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