One-Input Three-Output Current-Mode Universal Filter Using Translinear Current Conveyors

This paper presents a new current-mode universal filter with one-input three-output employing three translinear current conveyors and two grounded capacitors. The proposed filter provides low-pass, band-pass, high-pass current response with high output impedance output which can be directly connected for current-mode circuit. The band-pass and all-pass filters can also be obtained. The parameters wo and Q can be controlled separately and electronically by the bias currents of current conveyors. For realizing all filtering functions, no passive and active matching conditions are required. The active and passive sensitivities are low. The characteristic of the proposed circuit can be confirmed by SPICE simulations.

40 dB-Isolation, 1.85 dB-Insertion Loss Full CMOS SPDT Switch with Body-Floating Technique and Ultra-Small Active Matching Network Using On-Chip Solenoid Inductor for BLE Applications

In the IoT/wearable devices, the antenna is shared with the receiver and transmitter of the transceiver. This requires the control of the switch between the antenna and the control circuitry to achieve both low insertion loss and high isolation. This paper presents a low insertion loss and high isolation switch based on Single Pole Double Throw (SPDT) switch for 2.4 GHz Bluetooth low power (BLE) transceiver. The body-floating technique is used to improve the insertion loss’s performance. An ultra-small on-chip matching network with high Q-factor is proposed. The shunt transistors are used as active shunt capacitors that create the active matching network to improve isolation characteristics. The proposed SDPT switch was designed using 55 nm CMOS process with the total area of 110 μm × 210 μm. The insertion loss and isolation characteristics of the proposed SPDT switch observed at 2.4 GHz are 1.85 dB and 40 dB, respectively.

Against Multiple Agreement – Evidence from Standard Arabic

This paper provides evidence, based on the Case properties of verbless copular clauses in Standard Arabic (SA), against the Multiple Agreement Hypothesis proposed for languages such as Japanese (Hiraiwa, 2001), English (Chomsky, 2005b; Radford, 2006), and SA double-accusative structures (Al-Horais, 2013). It argues that the mismatch in Case value between the two nominal constituents – the DP “subject” and the DP or AP predicate - of verbless copular clauses is incompatible with the claim that a single probe can simultaneously agree with more than one goal. Rather, the Case phenomenon within the copular contexts considered appears to be consistent with, and follows from, an Agree relation between a single active probe and a single active matching goal. Some SA copular clauses which include a modal-like negative element - laysa - will also be used to address the key issue under investigation.