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As THz and millimetre wave technologies are further developing for a range of applications, photonics is one of the key technology for its development. We will discuss the different recent advances in photonic technologies for THz and millimetre wave. In particular we will look at integration technologies and their potential for reduced foot print and lower power consumption. We will although look...
Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the original...
Millimeter-wave and terahertz bands are expected to be used for ultra-high-speed wireless and optical transmission, sensing, imaging, and other high frequency applications because of their light-like broad band and penetration ability. This task introduces 300-GHz-band wireless communication ICs in InP HEMT technology and over 100-Gbit/s optical communication ICs in InP HBT technology. The talk will...
In the first part of this talk, I will give an overview of the unique applications of terahertz waves for chemical identification, material characterization, biomedical sensing and diagnostics and describe the state of the existing terahertz sensors. In the second part of the talk, I will introduce a game changing technology that enables high performance, low cost, and compact terahertz spectroscopy...
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
This paper presents a dual-band coupled-line band-pass filter, which is simply composed by a three-section coupled line and two short-circuited stubs. By rigorous derivation, its transmission zeros and poles are extracted, and thus can be predicted. Finally, the simulations and experiments are carried out, and the results match well with the predicted ones.
Dielectric resonator (DR) owns advantages of high quality factor, high power capacity, superior temperature stability, moderate circuit size, etc., emerging as a promising candidate for future small base station systems. According to the field distribution of the DR's fundamental mode, proper excitation schemes are established to differentially feed the DR so that it can be applied in designing balanced/Balun...
A novel polarization rotation technique based on an artificial magnetic conductor (AMC) structure is proposed. A new polarization-rotation AMC (PRAMC) with a height of only 0.04 λ0 is designed and a large polarization rotation bandwidth of 29.1% can be achieved. Firstly, the PRAMC is applied to design a low-profile circularly polarized dipole antenna with a broad axial ratio bandwidth and beamwidth...
A novel balanced-to-unbalanced filtering power divider using ring resonators is proposed. Due to the symmetry of the circuit model, even/odd-mode analysis method is applied to deduce the design equations at the operating frequency. The ring resonators can bring two transmission zeros in each side of the passband for differential-mode, which can improve frequency selectivity and out-of-band suppression...
Balanced/balanced-to-single-ended networks have been used widely in modern communication systems due to their ability of easy connection in balanced systems as well as differential-mode power division, common-mode suppression. Furthermore, filtering balanced or balanced-to-single-ended networks have become increasingly of interest for the advantages of multiple functions and compactness. In this paper,...
In this paper, a compact in-phase power divider integrated with bandpass responses in low temperature co-fired ceramic (LTCC) technology is presented. The proposed device is composed of three coupled half-wavelength resonators and an isolation resistor. Among them, one resonator acts as the common resonator and is symmetrically coupled to the other two using multiple broadside coupling. In this way,...
A tunable bandpass-to-bandstop filter using stub-loaded resonators is proposed in this letter. The proposed filter employs two open-circuited stub-loaded resonators with six varactors and a PIN diode. The center frequency of the proposed filter can be flexibly controlled by adjusting both odd-mode and even-mode resonant frequencies of the resonators. The bandpass-to-bandstop transformation can be...
In this paper, the millimeter-wave circuit miniaturization techniques using BCMLR and interdigital resonators are introduced. Using these structures, the physical size of the on-chip filter can be dramatically reduced. The designed BPFs are implemented in standard 0.13-μm SiGe and 0.1-μm GaAs technologies for concept approval. Compared with other state-of-the-art work at millimeter-wave frequencies,...
A dual-mode bandpass filter with compact size is proposed by using a new type of rotational symmetric dual-mode rectangular resonator. Due to the feed structure, two transmission zeros are generated near the lower and upper passbands to improve the skirt-selectivity of the filter. By adjusting the mutual coupling between the loading meander-line loop resonators, one transmission pole and neighboring...
Stub-loaded ring resonator and its application to miniaturized wideband BPF are presented in the paper. Detail analysis shows that the presented stub-loaded ring resonator can allocate three resonant modes within the desired frequency range, and due to the dual path effect of the ring resonator, two transmission zeros can be introduced at the upper and lower cut-off frequencies, resulting high passband...
A novel systematic synthesis method for negative group delay(NGD)structure is proposed in this paper. Transfer functions are obtain from synthesised characteristics polynomials which provides higher design flexibility. An optimum design condition is derived to reduce the number of resonators being equal to the highest degree of polynomial. Different synthesis examples are discussed with different orders...
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